diff --git a/gio/gio-tool-cat.c b/gio/gio-tool-cat.c
index 66841dd3e..bb0c928f5 100644
--- a/gio/gio-tool-cat.c
+++ b/gio/gio-tool-cat.c
@@ -39,7 +39,7 @@
 
 
 static const GOptionEntry entries[] = {
-  { NULL }
+  G_OPTION_ENTRY_NULL
 };
 
 /* 256k minus malloc overhead */