diff --git a/pkgs/by-name/ba/backgroundremover/package.nix b/pkgs/by-name/ba/backgroundremover/package.nix
index 3ee27b692393..1d16ec2071a7 100644
--- a/pkgs/by-name/ba/backgroundremover/package.nix
+++ b/pkgs/by-name/ba/backgroundremover/package.nix
@@ -29,7 +29,7 @@ let
 
     postPatch = ''
       substituteInPlace backgroundremover/bg.py backgroundremover/u2net/detect.py \
-        --replace 'os.path.expanduser(os.path.join("~", ".u2net", model_name + ".pth"))' "os.path.join(\"$models\", model_name + \".pth\")"
+        --replace-fail 'os.path.expanduser(os.path.join("~", ".u2net", model_name + ".pth"))' "os.path.join(\"$models\", model_name + \".pth\")"
     '';
 
     nativeBuildInputs = [ p.setuptools p.wheel ];