diff --git a/pkgs/build-support/fetchrepoproject/default.nix b/pkgs/build-support/fetchrepoproject/default.nix
index 78b8caeb8091..a5e79c8d4ef9 100644
--- a/pkgs/build-support/fetchrepoproject/default.nix
+++ b/pkgs/build-support/fetchrepoproject/default.nix
@@ -9,9 +9,14 @@
 assert repoRepoRev != "" -> repoRepoURL != "";
 assert createMirror -> !useArchive;
 
-with lib;
-
 let
+  inherit (lib)
+    concatMapStringsSep
+    concatStringsSep
+    fetchers
+    optionalString
+    ;
+
   extraRepoInitFlags = [
     (optionalString (repoRepoURL != "") "--repo-url=${repoRepoURL}")
     (optionalString (repoRepoRev != "") "--repo-branch=${repoRepoRev}")