1 files changed, 1 insertions, 1 deletions
diff --git a/mbbsd/calendar.c b/mbbsd/calendar.c
index 372dcc9a..385b9f82 100644
--- a/mbbsd/calendar.c
+++ b/mbbsd/calendar.c
@@ -260,7 +260,7 @@ GenerateCalendar(char **buf, int y, int m, int today, event_t * e)
 }
 
 int
-calendar()
+calendar(void)
 {
     char          **buf;
     struct tm       snow;