diff --git a/reactos/lib/sdk/crt/startup/crtexe.c b/reactos/lib/sdk/crt/startup/crtexe.c
index 59b1b914ecc..39904bf2c2f 100644
--- a/reactos/lib/sdk/crt/startup/crtexe.c
+++ b/reactos/lib/sdk/crt/startup/crtexe.c
@@ -418,7 +418,7 @@ __mingw_invalidParameterHandler (const wchar_t * __UNUSED_PARAM_1(expression),
 				 uintptr_t __UNUSED_PARAM(pReserved))
 {
 #ifdef __MINGW_SHOW_INVALID_PARAMETER_EXCEPTION
-  wprintf(L"Invalid parameter detected in function %s. File: %s Line: %d\n", function, file, line);
+  wprintf(L"Invalid parameter detected in function %s. File: %s Line: %u\n", function, file, line);
   wprintf(L"Expression: %s\n", expression);
 #endif
 }