diff --git a/nixos/modules/services/audio/wyoming/openwakeword.nix b/nixos/modules/services/audio/wyoming/openwakeword.nix
index f1f734540ca2..987818246bde 100644
--- a/nixos/modules/services/audio/wyoming/openwakeword.nix
+++ b/nixos/modules/services/audio/wyoming/openwakeword.nix
@@ -123,7 +123,7 @@ in
           "${cfg.package}/bin/wyoming-openwakeword"
           "--uri ${cfg.uri}"
           (concatMapStringsSep " " (model: "--preload-model ${model}") cfg.preloadModels)
-          (concatMapStringsSep " " (dir: "--custom-model-dir ${toString dir}") cfg.customModelDirectories)
+          (concatMapStringsSep " " (dir: "--custom-model-dir ${toString dir}") cfg.customModelsDirectories)
           "--threshold ${cfg.threshold}"
           "--trigger-level ${cfg.triggerLevel}"
           "${cfg.extraArgs}"