1 files changed, 3 insertions, 0 deletions
diff --git a/lockfile.c b/lockfile.c
index e148227..c897dd8 100644
--- a/lockfile.c
+++ b/lockfile.c
@@ -301,6 +301,9 @@ int commit_lock_file(struct lock_file *lk)
 {
 	char result_file[PATH_MAX];
 
+	if (!lk->filename[0])
+		die("BUG: attempt to commit unlocked object");
+
 	if (close_lock_file(lk))
 		return -1;