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-rw-r--r--src/transports/smart_protocol.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/transports/smart_protocol.c b/src/transports/smart_protocol.c
index 34f0f8449..91c72a74c 100644
--- a/src/transports/smart_protocol.c
+++ b/src/transports/smart_protocol.c
@@ -517,7 +517,7 @@ static int gen_pktline(git_buf *buf, git_push *push)
git_oid_fmt(old_id, &spec->roid);
git_oid_fmt(new_id, &spec->loid);
- git_buf_printf(buf, "%04x%s %s %s", len, old_id, new_id, spec->rref);
+ git_buf_printf(buf, "%04zx%s %s %s", len, old_id, new_id, spec->rref);
if (i == 0) {
git_buf_putc(buf, '\0');