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-rw-r--r--fsck-objects.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fsck-objects.c b/fsck-objects.c
index 4ba3377..b0e882a 100644
--- a/fsck-objects.c
+++ b/fsck-objects.c
@@ -452,7 +452,7 @@ static int fsck_head_link(void)
if (strncmp(git_refs_heads_master + pfxlen, "refs/heads/", 11))
return error("HEAD points to something strange (%s)",
git_refs_heads_master + pfxlen);
- if (!memcmp(null_sha1, sha1, 20))
+ if (is_null_sha1(sha1))
return error("HEAD: not a valid git pointer");
return 0;
}