diff --git a/src/plugins/plugin_misc_text_syntaxes.py b/src/plugins/plugin_misc_text_syntaxes.py
index 620e6d3b..7126bb85 100755
--- a/src/plugins/plugin_misc_text_syntaxes.py
+++ b/src/plugins/plugin_misc_text_syntaxes.py
@@ -216,6 +216,8 @@ class TextSyntaxes(object):
         else:
             d.addCallback(lambda xhtml: deferToThread(syntaxes[syntax_to]["from"], xhtml))
 
+        # converters can add new lines that disturb the microblog change detection
+        d.addCallback(lambda text: text.rstrip())
         return d
 
     def addSyntax(self, name, to_xhtml_cb, from_xhtml_cb, flags = None):