diff --git a/gb.net/src/CDnsClient.h b/gb.net/src/CDnsClient.h
index 12f874f94..af4ff5db3 100644
--- a/gb.net/src/CDnsClient.h
+++ b/gb.net/src/CDnsClient.h
@@ -52,7 +52,7 @@ typedef
 	}
 	CDNSCLIENT;
 
-void dns_callback(long lParam);
+void dns_callback(intptr_t lParam);
 void* dns_get_name(void* v_obj);
 void* dns_get_ip(void* v_obj);
 void dns_event(CDNSCLIENT *mythis);