diff --git a/dlls/wininet/internet.c b/dlls/wininet/internet.c
index b9f9f917777..6671950f8c7 100644
--- a/dlls/wininet/internet.c
+++ b/dlls/wininet/internet.c
@@ -2324,7 +2324,8 @@ static WCHAR *get_proxy_autoconfig_url(void)
     CFRelease( settings );
     return ret;
 #else
-    FIXME( "no support on this platform\n" );
+    static int once;
+    if (!once++) FIXME( "no support on this platform\n" );
     return NULL;
 #endif
 }