diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index cea530c7cdea4..0f1d00484af3c 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -125,7 +125,7 @@ endif
 #
 ifeq ($(CONFIG_KASAN),y)
 _c_flags += $(if $(patsubst n%,, \
-		$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)$(CONFIG_KASAN_SANITIZE_ALL)), \
+		$(KASAN_SANITIZE_$(basetarget).o)$(KASAN_SANITIZE)y), \
 		$(CFLAGS_KASAN))
 endif