1 files changed, 1 insertions, 0 deletions
diff --git a/cache.h b/cache.h
index 69801b02d5..f6c5909598 100644
--- a/cache.h
+++ b/cache.h
@@ -249,6 +249,7 @@ extern void *read_object_with_reference(const unsigned char *sha1,
 					unsigned char *sha1_ret);
 
 const char *show_date(unsigned long time, int timezone);
+const char *show_rfc2822_date(unsigned long time, int timezone);
 int parse_date(const char *date, char *buf, int bufsize);
 void datestamp(char *buf, int bufsize);
 unsigned long approxidate(const char *);