diff --git a/pkgs/by-name/pe/peazip/package.nix b/pkgs/by-name/pe/peazip/package.nix
index 5386e37d8ffb..6604103f89e9 100644
--- a/pkgs/by-name/pe/peazip/package.nix
+++ b/pkgs/by-name/pe/peazip/package.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   postPatch = ''
     # set it to use compression programs from $PATH
-    substituteInPlace dev/peach.pas --replace "  HSYSBIN       = 0;" "  HSYSBIN       = 2;"
+    substituteInPlace dev/peach.pas --replace-fail "  HSYSBIN       = 0;" "  HSYSBIN       = 2;"
   '';
 
   nativeBuildInputs = [