diff --git a/pkgs/applications/networking/instant-messengers/matrix-commander/default.nix b/pkgs/applications/networking/instant-messengers/matrix-commander/default.nix
index 2ebf762c418b..c4f268871e87 100644
--- a/pkgs/applications/networking/instant-messengers/matrix-commander/default.nix
+++ b/pkgs/applications/networking/instant-messengers/matrix-commander/default.nix
@@ -20,6 +20,7 @@ stdenv.mkDerivation {
       pillow
       urllib3
       aiofiles
+      notify2
     ]))];
 
   installPhase = ''