diff --git a/Userland/DynamicLoader/CMakeLists.txt b/Userland/DynamicLoader/CMakeLists.txt
index 95d2436d69..baa0829862 100644
--- a/Userland/DynamicLoader/CMakeLists.txt
+++ b/Userland/DynamicLoader/CMakeLists.txt
@@ -31,6 +31,8 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -nodefaultlibs -nostdlib -pie
 
 set_source_files_properties (../Libraries/LibC/ssp.cpp PROPERTIES COMPILE_FLAGS
     "-fno-stack-protector")
+# Prevent GCC from removing null checks by marking the `FILE*` argument non-null
+set_source_files_properties(../Libraries/LibC/stdio.cpp PROPERTIES COMPILE_FLAGS "-fno-builtin-fputc -fno-builtin-fputs -fno-builtin-fwrite")
 
 add_executable(Loader.so ${SOURCES})
 
diff --git a/Userland/Libraries/LibC/CMakeLists.txt b/Userland/Libraries/LibC/CMakeLists.txt
index fc37efe40b..9589f97671 100644
--- a/Userland/Libraries/LibC/CMakeLists.txt
+++ b/Userland/Libraries/LibC/CMakeLists.txt
@@ -115,6 +115,9 @@ if (NOT USE_CLANG_TOOLCHAIN)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libstdc++")
 endif()
 
+# Prevent GCC from removing null checks by marking the `FILE*` argument non-null
+set_source_files_properties(stdio.cpp PROPERTIES COMPILE_FLAGS "-fno-builtin-fputc -fno-builtin-fputs -fno-builtin-fwrite")
+
 add_library(LibCStaticWithoutDeps STATIC ${SOURCES})
 target_link_libraries(LibCStaticWithoutDeps ssp)
 add_dependencies(LibCStaticWithoutDeps LibM LibSystem LibUBSanitizer)