diff --git a/tix/watch.nix b/tix/watch.nix
index 3d2079e..f3c7096 100644
--- a/tix/watch.nix
+++ b/tix/watch.nix
@@ -2,7 +2,7 @@ pkgs: {
   cmd,
   setup ? null,
   stop ? null,
-  process ? "echo \"$out\"",
+  process ? null,
   view ? null,
 }:
 pkgs.writeShellScriptBin "watch" ''
@@ -11,7 +11,7 @@ pkgs.writeShellScriptBin "watch" ''
   while true
   do
     out=$(${cmd})
-    ${process}
+    ${toString process}
     ${
     if view == null
     then ""