diff --git a/routers/search.go b/routers/search.go
index 78f765084..4fecd0baa 100644
--- a/routers/search.go
+++ b/routers/search.go
@@ -189,6 +189,7 @@ func makeRepoResult(sRes *elastic.SearchResult, Key string, OnlyReturnNum bool)
 
 					if record["topics"] != nil {
 						topicsStr := record["topics"].(string)
+						log.Info("topicsStr=" + topicsStr)
 						if topicsStr != "null" {
 							topicsStr = strings.Replace(topicsStr, "\"", "", -1)
 							topicsStr = topicsStr[1 : len(topicsStr)-1]