diff --git a/README.md b/README.md
index 45db77b..10b28f1 100644
--- a/README.md
+++ b/README.md
@@ -5,4 +5,5 @@ A simple google chrome extension that automatically clears cache and reloads the
 ### How to install: 
 * Download the crx file.
 * Open chrome and navigate to [chrome://extensions/](chrome://extensions/).
+* Turn on Developer mode (top right corner) and refresh the page.
 * Drag and drop the crx file.