diff --git a/src/services/search/expressions/note_content_fulltext.js b/src/services/search/expressions/note_content_fulltext.js
index c893b124b..456306667 100644
--- a/src/services/search/expressions/note_content_fulltext.js
+++ b/src/services/search/expressions/note_content_fulltext.js
@@ -69,7 +69,7 @@ class NoteContentFulltextExp extends Expression {
             }
         }
 
-        if (!content || typeof content !== 'string') {
+        if (!content) {
             return;
         }