diff --git a/README.md b/README.md
index 488a13e..d041e87 100644
--- a/README.md
+++ b/README.md
@@ -51,7 +51,7 @@ Keyword arguments currently passed to the plugin:
 * `nick`: the user who triggered the command
 * `arg`: all the trailing text after the command. This is what you will use to get optional information for the command
 
-The plugin function **must** return one of the following:
+The plugin function **must** return one of the following in order to give a response to the command:
 * `pinhook.plugin.message`: basic message in channel where command was triggered
 * `pinhook.plugin.action`: CTCP action in the channel where command was triggered (basically like using `/me does a thing`)