diff --git a/config.py b/config.py
index a2b130a..2961f34 100644
--- a/config.py
+++ b/config.py
@@ -57,7 +57,9 @@ conf.registerGlobalValue(BadWords,'requireWordBoundaries',
     words to be independent words, or whether it will censor them within other
     words.  For instance, if 'darn' is a bad word, then if this is true, 'darn'
     will be censored, but 'darnit' will not.  You probably want this to be
-    false.""")))
+    false. After changing this setting, the BadWords regexp needs to be
+    regenerated by adding/removing a word to the list, or reloading the
+    plugin.""")))
 
 class String256(registry.String):
     def __call__(self):