diff --git a/kernel/model/tag.go b/kernel/model/tag.go
index 07b1151c7..6e9470167 100644
--- a/kernel/model/tag.go
+++ b/kernel/model/tag.go
@@ -306,6 +306,7 @@ func SearchTags(keyword string) (ret []string) {
 	sql.FlushQueue()
 
 	labels := labelBlocksByKeyword(keyword)
+	keyword = strings.Join(strings.Split(keyword, " "), search.TermSep)
 	for label := range labels {
 		_, t := search.MarkText(label, keyword, 1024, Conf.Search.CaseSensitive)
 		ret = append(ret, t)