diff --git a/plugins/SedRegex/test.py b/plugins/SedRegex/test.py
index 06b574e5a..3df4ca2ee 100644
--- a/plugins/SedRegex/test.py
+++ b/plugins/SedRegex/test.py
@@ -109,10 +109,16 @@ class SedRegexTestCase(ChannelPluginTestCase):
         self.feedMsg('ouch', frm=self.__class__.other2)
         self.feedMsg('poof', frm=self.__class__.other)
         self.feedMsg('wow!')
+
+        # This should work regardless of whether we use "nick," or "nick:" as prefix
         self.feedMsg('%s: s/^/p/' % ircutils.nickFromHostmask(self.__class__.other2))
         m = self.getMsg(' ')
         self.assertIn('pouch', str(m))
 
+        self.feedMsg('%s, s/^/c/' % ircutils.nickFromHostmask(self.__class__.other2))
+        m = self.getMsg(' ')
+        self.assertIn('couch', str(m))
+
     @unittest.skipUnless(sys.version_info[0] >= 3, 'Test fails on Python 2.')
     def testBoldReplacement(self):
         with conf.supybot.plugins.sedregex.boldReplacementText.context(True):