diff --git a/CoreFoundation/Base.subproj/ForFoundationOnly.h b/CoreFoundation/Base.subproj/ForFoundationOnly.h
index 1f80febdff..de95e00f74 100644
--- a/CoreFoundation/Base.subproj/ForFoundationOnly.h
+++ b/CoreFoundation/Base.subproj/ForFoundationOnly.h
@@ -59,7 +59,7 @@ CF_IMPLICIT_BRIDGING_DISABLED
 #include <mach/mach_time.h>
 #endif
 
-#if (INCLUDE_OBJC || TARGET_OS_MAC || TARGET_OS_WIN32) && !DEPLOYMENT_RUNTIME_SWIFT
+#if (INCLUDE_OBJC || TARGET_OS_MAC) && !DEPLOYMENT_RUNTIME_SWIFT
 #include <objc/message.h>
 #endif