diff --git a/lib/std/special/start.zig b/lib/std/special/start.zig
index c483fda75..a93b01c29 100644
--- a/lib/std/special/start.zig
+++ b/lib/std/special/start.zig
@@ -128,7 +128,7 @@ nakedcc fn _start() noreturn {
     @noInlineCall(posixCallMainAndExit);
 }
 
-extern fn WinMainCRTStartup() noreturn {
+stdcallcc fn WinMainCRTStartup() noreturn {
     @setAlignStack(16);
     if (!builtin.single_threaded) {
         _ = @import("start_windows_tls.zig");