diff --git a/pkgs/build-support/substitute-files/substitute-all-files.nix b/pkgs/build-support/substitute-files/substitute-all-files.nix
index aa600a76650c..66feb695c418 100644
--- a/pkgs/build-support/substitute-files/substitute-all-files.nix
+++ b/pkgs/build-support/substitute-files/substitute-all-files.nix
@@ -22,4 +22,5 @@ stdenv.mkDerivation ({
     eval "$postInstall"
   '';
   preferLocalBuild = true;
+  allowSubstitutes = false;
 } // args)