diff --git a/compiler-rt/lib/builtins/int_types.h b/compiler-rt/lib/builtins/int_types.h
index 48862f364217..7c7f8cb64aa9 100644
--- a/compiler-rt/lib/builtins/int_types.h
+++ b/compiler-rt/lib/builtins/int_types.h
@@ -223,7 +223,7 @@ typedef union {
 #define CRT_HAS_TF_MODE
 #endif
 
-#if __STDC_VERSION__ >= 199901L
+#if __STDC_VERSION__ >= 199901L && !defined(_MSC_VER)
 typedef float _Complex Fcomplex;
 typedef double _Complex Dcomplex;
 typedef long double _Complex Lcomplex;