diff --git a/src/callbacks.py b/src/callbacks.py
index 912501238..16477b4d6 100644
--- a/src/callbacks.py
+++ b/src/callbacks.py
@@ -414,8 +414,11 @@ class RichReplyMethods(object):
 
     def replySuccess(self, s='', **kwargs):
         v = self._getConfig(conf.supybot.replies.success)
-        s = self.__makeReply(v, s)
-        return self.reply(s, **kwargs)
+        if v:
+            s = self.__makeReply(v, s)
+            return self.reply(s, **kwargs)
+        else:
+            self.noReply()
 
     def replyError(self, s='', **kwargs):
         v = self._getConfig(conf.supybot.replies.error)
diff --git a/src/conf.py b/src/conf.py
index 29e22aa78..06a3c1881 100644
--- a/src/conf.py
+++ b/src/conf.py
@@ -421,7 +421,8 @@ registerGroup(supybot, 'replies')
 
 registerChannelValue(supybot.replies, 'success',
     registry.NormalizedString("""The operation succeeded.""", """Determines
-    what message the bot replies with when a command succeeded."""))
+    what message the bot replies with when a command succeeded.  If this
+    configuration variable is empty, no success message will be sent."""))
 
 registerChannelValue(supybot.replies, 'error',
     registry.NormalizedString("""An error has occurred and has been logged.