diff --git a/index.php b/index.php
index 9e2e90171d..c8cd4d5f9f 100755
--- a/index.php
+++ b/index.php
@@ -108,7 +108,7 @@
 		if (caDeviceIsMobile()) { AssetLoadManager::register('mobile'); }
 	
 		// Prevent caching
-		$resp->addHeader("Cache-Control", "no-cache, must-revalidate");
+		$resp->addHeader("Cache-Control", "no-cache, no-store, must-revalidate");
 		$resp->addHeader("Expires", "Mon, 26 Jul 1997 05:00:00 GMT");
 		
 		// Security headers