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-rw-r--r--cache.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/cache.h b/cache.h
index bd4c390d5..39789ee94 100644
--- a/cache.h
+++ b/cache.h
@@ -805,7 +805,7 @@ struct ref {
#define REF_HEADS (1u << 1)
#define REF_TAGS (1u << 2)
-extern struct ref *find_ref_by_name(struct ref *list, const char *name);
+extern struct ref *find_ref_by_name(const struct ref *list, const char *name);
#define CONNECT_VERBOSE (1u << 0)
extern struct child_process *git_connect(int fd[2], const char *url, const char *prog, int flags);