1 files changed, 1 insertions, 0 deletions
diff --git a/setup.c b/setup.c
index 751d02b9be..ae3e0ddda2 100644
--- a/setup.c
+++ b/setup.c
@@ -1004,6 +1004,7 @@ const char *discover_git_directory(struct strbuf *gitdir)
 		warning("ignoring git dir '%s': %s",
 			gitdir->buf + gitdir_offset, err.buf);
 		strbuf_release(&err);
+		strbuf_setlen(gitdir, gitdir_offset);
 		return NULL;
 	}