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-rwxr-xr-xpkgs/build-support/fetchgit/nix-prefetch-git2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/fetchgit/nix-prefetch-git b/pkgs/build-support/fetchgit/nix-prefetch-git
index 0d2536e225c3..4f9dd2ac272b 100755
--- a/pkgs/build-support/fetchgit/nix-prefetch-git
+++ b/pkgs/build-support/fetchgit/nix-prefetch-git
@@ -256,7 +256,7 @@ else
   # download the file and add it to the store.
   if test -z "$finalPath"; then
 
-      tmpPath="$(mktemp --tmpdir -d git-checkout-tmp-XXXXXXXX)"
+      tmpPath="$(mktemp -d "${TMPDIR:-/tmp}/git-checkout-tmp-XXXXXXXX")"
       trap "rm -rf \"$tmpPath\"" EXIT
 
       tmpFile="$tmpPath/git-export"