diff --git a/src/calibre/gui2/comments_editor.py b/src/calibre/gui2/comments_editor.py
index 81bc76a490..42e644224c 100644
--- a/src/calibre/gui2/comments_editor.py
+++ b/src/calibre/gui2/comments_editor.py
@@ -708,7 +708,7 @@ class EditorWidget(QTextEdit, LineEditECM):  # {{{
             c.movePosition(QTextCursor.Start, QTextCursor.MoveAnchor)
             c.movePosition(QTextCursor.End, QTextCursor.KeepAnchor)
             c.removeSelectedText()
-            c.insertHTML(val)
+            c.insertHtml(val)
 
     def text(self):
         return self.textCursor().selectedText()