diff --git a/pkgs/build-support/fetchgit/nix-prefetch-git b/pkgs/build-support/fetchgit/nix-prefetch-git
index b921f161f012..1e8ac0ec66ef 100755
--- a/pkgs/build-support/fetchgit/nix-prefetch-git
+++ b/pkgs/build-support/fetchgit/nix-prefetch-git
@@ -412,6 +412,7 @@ remove_tmpPath() {
 }
 
 remove_tmpHomePath() {
+    chmod -R u+w "$tmpHomePath"
     rm -rf "$tmpHomePath"
 }