diff --git a/pkgs/development/tools/misc/coreboot-toolchain/default.nix b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
index 7e3604c3511a..3452ac6ef963 100644
--- a/pkgs/development/tools/misc/coreboot-toolchain/default.nix
+++ b/pkgs/development/tools/misc/coreboot-toolchain/default.nix
@@ -40,7 +40,7 @@ let
       dontInstall = true;
 
       postPatch = ''
-        patchShebangs $out/util/crossgcc/buildgcc
+        patchShebangs util/crossgcc/buildgcc
 
         mkdir -p util/crossgcc/tarballs