diff --git a/nix/default.nix b/nix/default.nix
index f07c998..f3a3657 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -57,7 +57,7 @@ let
 
   # Laufzeit-Binaries die die App spawnen muss (node fuer claude-bridge.js,
   # npm fuer apply_bundle_update, tar fuer Bundle-Extract)
-  runtimeBins = [ pkgs.nodejs_22 pkgs.gnutar pkgs.gzip pkgs.ffmpeg-headless ];
+  runtimeBins = [ pkgs.nodejs_22 pkgs.gnutar pkgs.gzip pkgs.ffmpeg-headless pkgs.whisper-cpp ];
 in
 pkgs.stdenv.mkDerivation {
   pname = "claude-desktop";