diff --git a/nixos/modules/services/home-automation/wyoming/piper.nix b/nixos/modules/services/home-automation/wyoming/piper.nix
index b332c34bd926..250d46c76bbd 100644
--- a/nixos/modules/services/home-automation/wyoming/piper.nix
+++ b/nixos/modules/services/home-automation/wyoming/piper.nix
@@ -175,7 +175,7 @@ in
               ++ lib.optionals options.streaming [
                 "--streaming"
               ]
-              ++ lib.optionals options.cuda [
+              ++ lib.optionals options.useCUDA [
                 "--use-cuda"
               ]
               ++ options.extraArgs