diff --git a/mingw-w64-headers/include/psdk_inc/intrin-impl.h b/mingw-w64-headers/include/psdk_inc/intrin-impl.h
index 7da3238..4990b0a 100644
--- a/mingw-w64-headers/include/psdk_inc/intrin-impl.h
+++ b/mingw-w64-headers/include/psdk_inc/intrin-impl.h
@@ -1405,6 +1405,7 @@
 #define __INTRINSIC_DEFINED___movsd
 #endif /* __INTRINSIC_PROLOG */
 
+#if !defined(__GNUC__) || __GNUC__ < 8 /* GCC 8 has already defined _xgetbv */
 /* NOTE: This should be in immintrin.h */
 #if __INTRINSIC_PROLOG(_xgetbv)
 unsigned __int64 _xgetbv(unsigned int);
@@ -1426,6 +1427,7 @@
 }
 #define __INTRINSIC_DEFINED__xgetbv
 #endif /* __INTRINSIC_PROLOG */
+#endif /* __GNUC__ < 8 */
 
 #endif /* defined(__x86_64__) || defined(_AMD64_) || defined(__i386__) || defined(_X86_) */