diff --git a/AK/Debug.h.in b/AK/Debug.h.in
index d5f7b6aad53..cdbbb622dbe 100644
--- a/AK/Debug.h.in
+++ b/AK/Debug.h.in
@@ -342,6 +342,10 @@
 #cmakedefine01 SH_LANGUAGE_SERVER_DEBUG
 #endif
 
+#ifndef SOLITAIRE_DEBUG
+#cmakedefine01 SOLITAIRE_DEBUG
+#endif
+
 #ifndef SPAM_DEBUG
 #cmakedefine01 SPAM_DEBUG
 #endif
diff --git a/Meta/CMake/all_the_debug_macros.cmake b/Meta/CMake/all_the_debug_macros.cmake
index 644dab935d9..66e696b2ecc 100644
--- a/Meta/CMake/all_the_debug_macros.cmake
+++ b/Meta/CMake/all_the_debug_macros.cmake
@@ -178,6 +178,7 @@ set(LANGUAGE_SERVER_DEBUG ON)
 set(GL_DEBUG ON)
 set(WASM_BINPARSER_DEBUG ON)
 set(PDF_DEBUG ON)
+set(SOLITAIRE_DEBUG ON)
 
 # False positive: DEBUG is a flag but it works differently.
 # set(DEBUG ON)