diff --git a/gio/gdesktopappinfo.c b/gio/gdesktopappinfo.c
index 08cca5cda..62fdcf6f8 100644
--- a/gio/gdesktopappinfo.c
+++ b/gio/gdesktopappinfo.c
@@ -1142,7 +1142,7 @@ desktop_file_dir_unindexed_setup_search (DesktopFileDir *dir)
         {
           /* Index the interesting keys... */
           gchar **implements;
-          gint i;
+          gsize i;
 
           for (i = 0; i < G_N_ELEMENTS (desktop_key_match_category); i++)
             {