diff --git a/webpaste.el b/webpaste.el
index cff6624..c986285 100644
--- a/webpaste.el
+++ b/webpaste.el
@@ -135,7 +135,7 @@ provider.  The lamda should call ‘webpaste-return-url’ with resulting url to
 return it to the user."
   :group 'webpaste
   :type  '(alist :key-type (string :tag "provider name")
-                 :value-type (function :tag "lambda function for the provider")))
+                 :value-type (function :tag "webpaste-provider macro definition for the provider")))
 
 
 ;;;###autoload