diff --git a/models/user_analysis_for_activity.go b/models/user_analysis_for_activity.go
index e69eecae0..d8e4a5500 100644
--- a/models/user_analysis_for_activity.go
+++ b/models/user_analysis_for_activity.go
@@ -195,7 +195,7 @@ func queryPullRequestPublic(start_unix int64, end_unix int64, publicAllRepo map[
 	sess := x.NewSession()
 	defer sess.Close()
 	resultMap := make(map[int64]int)
-	cond := "pull_request.merged_unix>=" + fmt.Sprint(start_unix) + " and pull_request.merged_unix<=" + fmt.Sprint(end_unix)
+	cond := "issue.created_unix>=" + fmt.Sprint(start_unix) + " and issue.created_unix<=" + fmt.Sprint(end_unix)
 	count, err := sess.Table("issue").Join("inner", "pull_request", "issue.id=pull_request.issue_id").Where(cond).Count(new(Issue))
 	if err != nil {
 		log.Info("query issue error. return.")