diff --git a/modules/desktop/chat/default.nix b/modules/desktop/chat/default.nix
index 59fc8756..9baabd8d 100644
--- a/modules/desktop/chat/default.nix
+++ b/modules/desktop/chat/default.nix
@@ -11,6 +11,6 @@
     ./gajim
     ./pidgin
     ./psiplus
-    ./thunderbird
+    ./thunderbird.nix
   ];
 }