diff --git a/Userland/hexdump.cpp b/Userland/hexdump.cpp
index 662a380a1c9..82840d9ab8e 100644
--- a/Userland/hexdump.cpp
+++ b/Userland/hexdump.cpp
@@ -1,3 +1,29 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
 #include <AK/LogStream.h>
 #include <LibCore/ArgsParser.h>
 #include <LibCore/File.h>
@@ -14,9 +40,7 @@ int main(int argc, char** argv)
     RefPtr<Core::File> file;
 
     if (!path) {
-        file = Core::File::construct();
-        bool success = file->open(STDIN_FILENO, Core::File::ReadOnly, Core::File::ShouldCloseFileDescription::No);
-        ASSERT(success);
+        file = Core::File::stdin();
     } else {
         auto file_or_error = Core::File::open(path, Core::File::ReadOnly);
         if (file_or_error.is_error()) {
@@ -66,4 +90,4 @@ int main(int argc, char** argv)
         print_line();
 
     return 0;
-}
\ No newline at end of file
+}