diff --git a/src/PantheonGreeter.vala b/src/PantheonGreeter.vala
index 11aa4c0..02bfa90 100644
--- a/src/PantheonGreeter.vala
+++ b/src/PantheonGreeter.vala
@@ -117,6 +117,10 @@ public class PantheonGreeter : Gtk.Window {
             warning (e.message);
         }
 
+        var gtk_settings = Gtk.Settings.get_default ();
+        gtk_settings.gtk_icon_theme_name = "elementary";
+        gtk_settings.gtk_theme_name = "elementary";
+
         clutter = new GtkClutter.Embed ();
         clutter.add_events (Gdk.EventMask.BUTTON_RELEASE_MASK);