diff --git a/src/apps.json b/src/apps.json
index 160c579fa..629c61fab 100644
--- a/src/apps.json
+++ b/src/apps.json
@@ -10923,7 +10923,7 @@
       ],
       "headers": {
         "Set-Cookie": "ZENDSERVERSESSID",
-        "X-Powered-By": "Zend"
+        "X-Powered-By": "Zend(?:Server)?(?:[\\s/]?([0-9.]+))?\\;version:\\1"
       },
       "icon": "Zend.png",
       "website": "http://zend.com"