--- src/gui/gcal-window.c
+++ src/gui/gcal-window.c
@@ -1131,6 +1131,8 @@
   gcal_window_add_accelerator (app, "win.change-view(3)",    "<Ctrl>3");
   gcal_window_add_accelerator (app, "app.quit", "<Ctrl>q");
   gcal_window_add_accelerator (app, "win.new-event", "<Ctrl>n");
+
+  gtk_window_set_icon_name (self, "org.gnome.Calendar");
 }
 
 /**