diff --git a/nixos/modules/services/home-automation/wyoming/faster-whisper.nix b/nixos/modules/services/home-automation/wyoming/faster-whisper.nix
index 95f9f127485d..7c52cafac33a 100644
--- a/nixos/modules/services/home-automation/wyoming/faster-whisper.nix
+++ b/nixos/modules/services/home-automation/wyoming/faster-whisper.nix
@@ -282,7 +282,7 @@ in
     mkIf (cfg.servers != { }) {
       assertions = mapAttrsToList (
         server: options: {
-          assertion = options.useTransformers -> options.initialPromt == null;
+          assertion = options.useTransformers -> options.initialPrompt == null;
           message = "wyoming-faster-whisper/${server}: Transformer models (`useTransformers`) do not currently support an `initialPrompt`.";
         }
       );