diff --git a/tools/winapi/winapi_check b/tools/winapi/winapi_check
index 762e9d1c873..cf1b22b0424 100755
--- a/tools/winapi/winapi_check
+++ b/tools/winapi/winapi_check
@@ -639,7 +639,7 @@ foreach my $file (@c_files) {
     });
 
     if($options->config_unnecessary) {
-	if($config && $conditional == 0) {
+	if($config && $conditional == 0 && !exists($include2info{"include/wine/port.h"})) {
 	    $output->write("$file: include2info config.h but do not use any conditionals\n");
 	}
     }