diff --git a/Makefile b/Makefile
index 9cac6fde347956..e523dc8d30e061 100644
--- a/Makefile
+++ b/Makefile
@@ -578,6 +578,7 @@ ifneq ($(LLVM_IAS),1)
 CLANG_FLAGS	+= -no-integrated-as
 endif
 CLANG_FLAGS	+= -Werror=unknown-warning-option
+CLANG_FLAGS	+= -fno-builtin-stpcpy
 KBUILD_CFLAGS	+= $(CLANG_FLAGS)
 KBUILD_AFLAGS	+= $(CLANG_FLAGS)
 export CLANG_FLAGS