1 files changed, 1 insertions, 1 deletions
diff --git a/cache.h b/cache.h
index f29afc4088..f0eecb3d4c 100644
--- a/cache.h
+++ b/cache.h
@@ -208,7 +208,7 @@ extern void *read_object_with_reference(const unsigned char *sha1,
 					unsigned char *sha1_ret);
 
 const char *show_date(unsigned long time, int timezone);
-void parse_date(char *date, char *buf, int bufsize);
+void parse_date(const char *date, char *buf, int bufsize);
 void datestamp(char *buf, int bufsize);
 
 static inline void *xmalloc(size_t size)