diff --git a/src/js/page.js b/src/js/page.js
index 9ca2463..5fe494d 100644
--- a/src/js/page.js
+++ b/src/js/page.js
@@ -847,10 +847,11 @@
   /**
   * Remove an element
   */
-  init: function() { 
+  init: function() {
     if (document.body.hasAttribute('screen_capture_injected')) {
       return;
     }
+    document.body.setAttribute('screen_capture_injected', true);
     if (isPageCapturable()) {
       chrome.extension.sendMessage({msg: 'page_capturable'});
     } else {