diff --git a/nixos/modules/services/matrix/mautrix-telegram.nix b/nixos/modules/services/matrix/mautrix-telegram.nix
index 5a632fd27e80..b64cc71d9873 100644
--- a/nixos/modules/services/matrix/mautrix-telegram.nix
+++ b/nixos/modules/services/matrix/mautrix-telegram.nix
@@ -137,7 +137,7 @@ in {
       wantedBy = [ "multi-user.target" ];
       wants = [ "network-online.target" ] ++ cfg.serviceDependencies;
       after = [ "network-online.target" ] ++ cfg.serviceDependencies;
-      path = [ pkgs.lottieconverter ];
+      path = [ pkgs.lottieconverter pkgs.ffmpeg-full ];
 
       # mautrix-telegram tries to generate a dotfile in the home directory of
       # the running user if using a postgresql database: