diff --git a/Include/cpython/pytime.h b/Include/cpython/pytime.h
index 16d88d191e9e25..46cc97bd7cfec3 100644
--- a/Include/cpython/pytime.h
+++ b/Include/cpython/pytime.h
@@ -53,7 +53,7 @@ functions and constants
 extern "C" {
 #endif
 
-#ifdef __clang__
+#if defined(__clang__) || defined(_MSC_VER)
 struct timeval;
 #endif