diff --git a/gio/gdesktopappinfo.c b/gio/gdesktopappinfo.c
index 62fdcf6f8..f660b4985 100644
--- a/gio/gdesktopappinfo.c
+++ b/gio/gdesktopappinfo.c
@@ -1221,7 +1221,7 @@ static gboolean
 array_contains (GPtrArray *array,
                 const gchar *str)
 {
-  gint i;
+  guint i;
 
   for (i = 0; i < array->len; i++)
     if (g_str_equal (array->pdata[i], str))