diff --git a/pkgs/development/libraries/glibc/2.17/default.nix b/pkgs/development/libraries/glibc/2.17/default.nix
index 1985790e9a1f..b6d91c932db8 100644
--- a/pkgs/development/libraries/glibc/2.17/default.nix
+++ b/pkgs/development/libraries/glibc/2.17/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, fetchgit, kernelHeaders
+{ stdenv, fetchurl, fetchgit ? null, kernelHeaders
 , machHeaders ? null, hurdHeaders ? null, libpthreadHeaders ? null
 , mig ? null
 , installLocales ? true