diff --git a/Userland/Utilities/arp.cpp b/Userland/Utilities/arp.cpp
index 2f7f8f0514a..1f387054376 100644
--- a/Userland/Utilities/arp.cpp
+++ b/Userland/Utilities/arp.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonObject.h>
 #include <AK/String.h>
diff --git a/Userland/Utilities/base64.cpp b/Userland/Utilities/base64.cpp
index 53f7d419bc9..a57f6f961d7 100644
--- a/Userland/Utilities/base64.cpp
+++ b/Userland/Utilities/base64.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/Base64.h>
 #include <AK/ByteBuffer.h>
 #include <LibCore/ArgsParser.h>
diff --git a/Userland/Utilities/copy.cpp b/Userland/Utilities/copy.cpp
index 21fcb30b4af..3adfb1c5a51 100644
--- a/Userland/Utilities/copy.cpp
+++ b/Userland/Utilities/copy.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/String.h>
 #include <AK/StringBuilder.h>
diff --git a/Userland/Utilities/crash.cpp b/Userland/Utilities/crash.cpp
index f655d3a51c2..c9bbf764639 100644
--- a/Userland/Utilities/crash.cpp
+++ b/Userland/Utilities/crash.cpp
@@ -5,6 +5,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/Function.h>
 #include <AK/String.h>
 #include <Kernel/IO.h>
diff --git a/Userland/Utilities/df.cpp b/Userland/Utilities/df.cpp
index a1cce02abac..8717c447b89 100644
--- a/Userland/Utilities/df.cpp
+++ b/Userland/Utilities/df.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/du.cpp b/Userland/Utilities/du.cpp
index fc1ea7acf6a..cc60dfa722c 100644
--- a/Userland/Utilities/du.cpp
+++ b/Userland/Utilities/du.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/LexicalPath.h>
 #include <AK/String.h>
diff --git a/Userland/Utilities/expr.cpp b/Userland/Utilities/expr.cpp
index 55d00a84959..cd6400a5e69 100644
--- a/Userland/Utilities/expr.cpp
+++ b/Userland/Utilities/expr.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/GenericLexer.h>
 #include <AK/NonnullOwnPtr.h>
 #include <AK/OwnPtr.h>
diff --git a/Userland/Utilities/find.cpp b/Userland/Utilities/find.cpp
index de210733295..524a5575a3a 100644
--- a/Userland/Utilities/find.cpp
+++ b/Userland/Utilities/find.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/LexicalPath.h>
 #include <AK/NonnullOwnPtr.h>
 #include <AK/OwnPtr.h>
diff --git a/Userland/Utilities/grep.cpp b/Userland/Utilities/grep.cpp
index 922788bc60d..a2483650bce 100644
--- a/Userland/Utilities/grep.cpp
+++ b/Userland/Utilities/grep.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/ScopeGuard.h>
 #include <AK/String.h>
diff --git a/Userland/Utilities/gron.cpp b/Userland/Utilities/gron.cpp
index 00fab8e1b5c..67c27149cef 100644
--- a/Userland/Utilities/gron.cpp
+++ b/Userland/Utilities/gron.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/ifconfig.cpp b/Userland/Utilities/ifconfig.cpp
index ef0c225a926..41c7b03aaa0 100644
--- a/Userland/Utilities/ifconfig.cpp
+++ b/Userland/Utilities/ifconfig.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/jp.cpp b/Userland/Utilities/jp.cpp
index 4efd93f07df..4ee1a852b60 100644
--- a/Userland/Utilities/jp.cpp
+++ b/Userland/Utilities/jp.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/js.cpp b/Userland/Utilities/js.cpp
index 4eb6f555e4b..978a92c5c25 100644
--- a/Userland/Utilities/js.cpp
+++ b/Userland/Utilities/js.cpp
@@ -5,6 +5,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/Format.h>
 #include <AK/NonnullOwnPtr.h>
diff --git a/Userland/Utilities/ls.cpp b/Userland/Utilities/ls.cpp
index 948515a98d8..739583149ae 100644
--- a/Userland/Utilities/ls.cpp
+++ b/Userland/Utilities/ls.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/HashMap.h>
 #include <AK/NumberFormat.h>
 #include <AK/QuickSort.h>
diff --git a/Userland/Utilities/lsirq.cpp b/Userland/Utilities/lsirq.cpp
index ff46b008a9d..79196c47a6a 100644
--- a/Userland/Utilities/lsirq.cpp
+++ b/Userland/Utilities/lsirq.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/man.cpp b/Userland/Utilities/man.cpp
index 619e7f537d6..9af4e02a231 100644
--- a/Userland/Utilities/man.cpp
+++ b/Userland/Utilities/man.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/String.h>
 #include <LibCore/ArgsParser.h>
diff --git a/Userland/Utilities/mount.cpp b/Userland/Utilities/mount.cpp
index ff3c3511d4a..fd4fed86279 100644
--- a/Userland/Utilities/mount.cpp
+++ b/Userland/Utilities/mount.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonArray.h>
 #include <AK/JsonObject.h>
diff --git a/Userland/Utilities/ntpquery.cpp b/Userland/Utilities/ntpquery.cpp
index 089c294fc55..c5abba85239 100644
--- a/Userland/Utilities/ntpquery.cpp
+++ b/Userland/Utilities/ntpquery.cpp
@@ -6,6 +6,7 @@
 
 #define _BSD_SOURCE
 #define _DEFAULT_SOURCE
+#include <AK/Assertions.h>
 #include <AK/Endian.h>
 #include <AK/Random.h>
 #include <LibCore/ArgsParser.h>
diff --git a/Userland/Utilities/ping.cpp b/Userland/Utilities/ping.cpp
index d554692bf4b..3d0466f632c 100644
--- a/Userland/Utilities/ping.cpp
+++ b/Userland/Utilities/ping.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <LibCore/ArgsParser.h>
 #include <arpa/inet.h>
 #include <errno.h>
diff --git a/Userland/Utilities/pmap.cpp b/Userland/Utilities/pmap.cpp
index 8a738865a80..24ae1e16366 100644
--- a/Userland/Utilities/pmap.cpp
+++ b/Userland/Utilities/pmap.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonObject.h>
 #include <AK/QuickSort.h>
diff --git a/Userland/Utilities/printf.cpp b/Userland/Utilities/printf.cpp
index 3d8b631a3d5..576db3d5c87 100644
--- a/Userland/Utilities/printf.cpp
+++ b/Userland/Utilities/printf.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/PrintfImplementation.h>
 #include <AK/String.h>
 #include <AK/StringBuilder.h>
diff --git a/Userland/Utilities/syscall.cpp b/Userland/Utilities/syscall.cpp
index 86aea17ad65..c376ae8d16c 100644
--- a/Userland/Utilities/syscall.cpp
+++ b/Userland/Utilities/syscall.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/Debug.h>
 #include <AK/Iterator.h>
 #include <AK/Vector.h>
diff --git a/Userland/Utilities/tar.cpp b/Userland/Utilities/tar.cpp
index 403b18f4f90..2ef629d7b24 100644
--- a/Userland/Utilities/tar.cpp
+++ b/Userland/Utilities/tar.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/LexicalPath.h>
 #include <AK/Span.h>
 #include <AK/Vector.h>
diff --git a/Userland/Utilities/test.cpp b/Userland/Utilities/test.cpp
index 6d933282577..aea9d67c7b0 100644
--- a/Userland/Utilities/test.cpp
+++ b/Userland/Utilities/test.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/LexicalPath.h>
 #include <AK/NonnullOwnPtr.h>
 #include <AK/OwnPtr.h>
diff --git a/Userland/Utilities/test_env.cpp b/Userland/Utilities/test_env.cpp
index cf85668997e..3cc66ebd9a5 100644
--- a/Userland/Utilities/test_env.cpp
+++ b/Userland/Utilities/test_env.cpp
@@ -4,7 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include <assert.h>
+#include <AK/Assertions.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/Userland/Utilities/traceroute.cpp b/Userland/Utilities/traceroute.cpp
index 704a2de9929..ae44f05f546 100644
--- a/Userland/Utilities/traceroute.cpp
+++ b/Userland/Utilities/traceroute.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/String.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/ElapsedTimer.h>
diff --git a/Userland/Utilities/unzip.cpp b/Userland/Utilities/unzip.cpp
index d2d6744a184..5fe9de4e6ce 100644
--- a/Userland/Utilities/unzip.cpp
+++ b/Userland/Utilities/unzip.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/MappedFile.h>
 #include <AK/NumberFormat.h>
 #include <LibArchive/Zip.h>
diff --git a/Userland/Utilities/utmpupdate.cpp b/Userland/Utilities/utmpupdate.cpp
index 54e09a4ff08..067a64225e6 100644
--- a/Userland/Utilities/utmpupdate.cpp
+++ b/Userland/Utilities/utmpupdate.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/ByteBuffer.h>
 #include <AK/JsonObject.h>
 #include <AK/JsonValue.h>
diff --git a/Userland/Utilities/watch.cpp b/Userland/Utilities/watch.cpp
index 4054b4b0f89..e10fba64530 100644
--- a/Userland/Utilities/watch.cpp
+++ b/Userland/Utilities/watch.cpp
@@ -4,6 +4,7 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <AK/Assertions.h>
 #include <AK/String.h>
 #include <AK/StringBuilder.h>
 #include <AK/Time.h>