diff --git a/webinterface.py b/webinterface.py
index f37d3779e..264340e58 100644
--- a/webinterface.py
+++ b/webinterface.py
@@ -996,7 +996,7 @@ def individualPostAsHtml(baseDir: str, \
if replyNickname and replyDomain:
titleStr+=' replying to @'+replyNickname+'@'+replyDomain+''
else:
- titleStr+=' replying to '+postJsonObject['object']['inReplyTo']
+ titleStr+=' replying to '+postJsonObject['object']['inReplyTo']+''
attachmentStr=''
if postJsonObject['object']['attachment']:
if isinstance(postJsonObject['object']['attachment'], list):