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-rw-r--r--builtin-commit-tree.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/builtin-commit-tree.c b/builtin-commit-tree.c
index 9c98796..e2e690a 100644
--- a/builtin-commit-tree.c
+++ b/builtin-commit-tree.c
@@ -69,7 +69,7 @@ static int new_parent(int idx)
int i;
unsigned char *sha1 = parent_sha1[idx];
for (i = 0; i < idx; i++) {
- if (!memcmp(parent_sha1[i], sha1, 20)) {
+ if (!hashcmp(parent_sha1[i], sha1)) {
error("duplicate parent %s ignored", sha1_to_hex(sha1));
return 0;
}