diff -r 63a7c3c2e5ee src/core/desktop-file-service.vala
--- a/src/core/desktop-file-service.vala	Sat Oct 19 12:53:48 2013 +0200
+++ b/src/core/desktop-file-service.vala	Sat Oct 19 18:34:14 2013 +0200
@@ -357,6 +357,8 @@
           {
             // ignore ourselves
             if (name.has_suffix ("synapse.desktop")) continue;
+            // Hack to allow the use of Synapse with Gnome Weather installed:
+            if (name.has_suffix("org.gnome.Weather.Application.desktop")) continue;
             if (name.has_suffix (".desktop"))
             {
               yield load_desktop_file (directory.get_child (name), id_prefix);