diff --git a/pkgs/development/python-modules/python-roborock/default.nix b/pkgs/development/python-modules/python-roborock/default.nix
index b3ae2affe825..49ea2cc277d3 100644
--- a/pkgs/development/python-modules/python-roborock/default.nix
+++ b/pkgs/development/python-modules/python-roborock/default.nix
@@ -34,7 +34,7 @@ buildPythonPackage rec {
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace "poetry-core==1.8.0" "poetry-core"
+      --replace-fail "poetry-core==1.8.0" "poetry-core"
   '';
 
   pythonRelaxDeps = [ "pycryptodome" ];