diff --git a/routers/api/v1/repo/repo_dashbord.go b/routers/api/v1/repo/repo_dashbord.go
index e2bd15e1f..08f4af64c 100644
--- a/routers/api/v1/repo/repo_dashbord.go
+++ b/routers/api/v1/repo/repo_dashbord.go
@@ -240,6 +240,8 @@ func getEndOfMonthDates(beginTime time.Time, endTime time.Time) []string {
 		}
 	}
 
+	dates = append(dates, endTime.AddDate(0, 0, -1).Format(DATE_FORMAT))
+
 	return dates
 }