diff --git a/models/topic.go b/models/topic.go
index 8abc76b9c..0b19bc1f0 100644
--- a/models/topic.go
+++ b/models/topic.go
@@ -327,7 +327,7 @@ func SaveTopics(repoID int64, topicNames ...string) error {
 
 func GetOrgTopics(orgId int64) ([]Topic, error) {
 	result := make([]Topic, 0)
-	sql := "select t.* from repository r " +
+	sql := "select distinct(t.*) from repository r " +
 		"inner join repo_topic rt on rt.repo_id = r.id " +
 		"inner join topic t on rt.topic_id = t.id " +
 		"where r.owner_id = ? order by repo_count desc limit 50"