diff --git a/routers/search.go b/routers/search.go
index 4fecd0baa..c5b0a50bf 100644
--- a/routers/search.go
+++ b/routers/search.go
@@ -187,8 +187,8 @@ func makeRepoResult(sRes *elastic.SearchResult, Key string, OnlyReturnNum bool)
 					record["num_stars"] = recordSource["num_stars"]
 					record["num_forks"] = recordSource["num_forks"]
 
-					if record["topics"] != nil {
-						topicsStr := record["topics"].(string)
+					if recordSource["topics"] != nil {
+						topicsStr := recordSource["topics"].(string)
 						log.Info("topicsStr=" + topicsStr)
 						if topicsStr != "null" {
 							topicsStr = strings.Replace(topicsStr, "\"", "", -1)