diff --git a/pkgs/tools/package-management/nix/vendor/2_26/packaging/components.nix b/pkgs/tools/package-management/nix/vendor/2_26/packaging/components.nix
index 38af5a5c6a1d..98a2f1026bea 100644
--- a/pkgs/tools/package-management/nix/vendor/2_26/packaging/components.nix
+++ b/pkgs/tools/package-management/nix/vendor/2_26/packaging/components.nix
@@ -51,7 +51,7 @@ let
 
   setVersionLayer = finalAttrs: prevAttrs: {
     preConfigure =
-      prevAttrs.prevAttrs or ""
+      prevAttrs.preConfigure or ""
       +
         # Update the repo-global .version file.
         # Symlink ./.version points there, but by default only workDir is writable.