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-rwxr-xr-xpkgs/os-specific/linux/kernel/update-libre.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/os-specific/linux/kernel/update-libre.sh b/pkgs/os-specific/linux/kernel/update-libre.sh
index 3b8a00edcda..e056577477c 100755
--- a/pkgs/os-specific/linux/kernel/update-libre.sh
+++ b/pkgs/os-specific/linux/kernel/update-libre.sh
@@ -20,7 +20,7 @@ sha256="$(QUIET=1 nix-prefetch-svn "$svn_url" "$rev" | tail -1)"
 sed -i -e "s/rev = \".*\"/rev = \"$rev\"/" \
     -e "s/sha256 = \".*\"/sha256 = \"$sha256\"/" "$path"
 
-if [ -n "$COMMIT" ]; then
+if [ -n "${COMMIT-}" ]; then
     git commit -qm "linux_latest-libre: $old_rev -> $rev" "$path"
     echo "Updated linux_latest-libre $old_rev -> $rev"
 fi