Index: kernel/Makefile
===================================================================
--- kernel/Makefile	(revision b92a0ee0b9b93ef0d525013de4a657a5b969bae6)
+++ kernel/Makefile	(revision 2e842f2f44fea53af241bdcbe95c939ad9e028b5)
@@ -105,5 +105,5 @@
 CLANG_CFLAGS = $(INCLUDES_FLAGS) -O$(OPTIMIZATION) -imacros $(CONFIG_HEADER) \
 	-ffreestanding -fno-builtin -nostdlib -nostdinc \
-	-Wall -Wextra -Wno-unused-parameter -Wmissing-prototypes \
+	-Wall -Werror -Wextra -Wno-unused-parameter -Wmissing-prototypes \
 	-Werror-implicit-function-declaration -Wwrite-strings \
 	-integrated-as \