diff --git a/README.md b/README.md
index 7e1ad88..c89143f 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,5 @@ Code tag in CKEditor
 
 Install by placing in ckeditor/plugins/ and add the following to ckeditor/config.js
     
-    config.extraPlugins = 'codeTag';
\ No newline at end of file
+    config.extraPlugins = 'codeTag';
+    config.extraAllowedContent = 'code';