diff --git a/pkgs/by-name/wg/wget2/package.nix b/pkgs/by-name/wg/wget2/package.nix
index 07f3a999ee6c..de2845da6aa8 100644
--- a/pkgs/by-name/wg/wget2/package.nix
+++ b/pkgs/by-name/wg/wget2/package.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation rec {
   # wget2_noinstall contains forbidden reference to /build/
   postPatch = ''
     substituteInPlace src/Makefile.am \
-      --replace "bin_PROGRAMS = wget2 wget2_noinstall" "bin_PROGRAMS = wget2"
+      --replace-fail "bin_PROGRAMS = wget2 wget2_noinstall" "bin_PROGRAMS = wget2"
   '';
 
   strictDeps = true;