diff --git a/src/st/st-icon-theme.c b/src/st/st-icon-theme.c
index dc3f8cedc..d6f68afbb 100644
--- a/src/st/st-icon-theme.c
+++ b/src/st/st-icon-theme.c
@@ -478,8 +478,8 @@ st_icon_theme_init (StIconTheme *icon_theme)
   icon_theme->pixbuf_supports_svg = pixbuf_supports_svg ();
 
   settings = st_settings_get ();
-  g_signal_connect (settings, "notify::gtk-icon-theme",
-                    G_CALLBACK (theme_changed), icon_theme);
+  g_signal_connect_object (settings, "notify::gtk-icon-theme",
+                           G_CALLBACK (theme_changed), icon_theme, 0);
   update_current_theme (icon_theme);
 }