diff --git a/src/st/st-icon.c b/src/st/st-icon.c
index 70e4fb46c..090ba4b10 100644
--- a/src/st/st-icon.c
+++ b/src/st/st-icon.c
@@ -726,7 +726,7 @@ void
 st_icon_set_fallback_icon_name (StIcon      *icon,
                                 const gchar *fallback_icon_name)
 {
-  GIcon *gicon = NULL;
+  g_autoptr(GIcon) gicon = NULL;
 
   g_return_if_fail (ST_IS_ICON (icon));