diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index 806649c7f23d..85be1933d8bd 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -90,7 +90,7 @@ do {								\
  */
 #define __WARN_FLAGS(flags)					\
 do {								\
-	__auto_type __flags = BUGFLAG_WARNING|(flags);		\
+	enum{ __flags = BUGFLAG_WARNING|(flags)};		    \
 	instrumentation_begin();				\
 	_BUG_FLAGS(ASM_UD2, __flags, ASM_REACHABLE);		\
 	instrumentation_end();					\