diff --git a/docs/varnish/vcl/varnish5.vcl b/docs/varnish/vcl/varnish5.vcl
index 15819da..4ac040b 100644
--- a/docs/varnish/vcl/varnish5.vcl
+++ b/docs/varnish/vcl/varnish5.vcl
@@ -51,7 +51,7 @@ sub vcl_recv {
     if (req.http.cookie) {
         set req.http.cookie = ";" + req.http.cookie;
         set req.http.cookie = regsuball(req.http.cookie, "; +", ";");
-        set req.http.cookie = regsuball(req.http.cookie, ";(eZSESSID[^=]*)=", "; \1=");
+        set req.http.cookie = regsuball(req.http.cookie, ";(IBX_SESSION_ID[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";(ibexa-[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";[^ ][^;]*", "");
         set req.http.cookie = regsuball(req.http.cookie, "^[; ]+|[; ]+$", "");
diff --git a/docs/varnish/vcl/varnish6.vcl b/docs/varnish/vcl/varnish6.vcl
index a5c8bbf..d4a6b93 100644
--- a/docs/varnish/vcl/varnish6.vcl
+++ b/docs/varnish/vcl/varnish6.vcl
@@ -51,7 +51,7 @@ sub vcl_recv {
     if (req.http.cookie) {
         set req.http.cookie = ";" + req.http.cookie;
         set req.http.cookie = regsuball(req.http.cookie, "; +", ";");
-        set req.http.cookie = regsuball(req.http.cookie, ";(eZSESSID[^=]*)=", "; \1=");
+        set req.http.cookie = regsuball(req.http.cookie, ";(IBX_SESSION_ID[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";(ibexa-[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";[^ ][^;]*", "");
         set req.http.cookie = regsuball(req.http.cookie, "^[; ]+|[; ]+$", "");
diff --git a/docs/varnish/vcl/varnish7.vcl b/docs/varnish/vcl/varnish7.vcl
index 3443e75..618e4c8 100644
--- a/docs/varnish/vcl/varnish7.vcl
+++ b/docs/varnish/vcl/varnish7.vcl
@@ -49,7 +49,7 @@ sub vcl_recv {
     if (req.http.cookie) {
         set req.http.cookie = ";" + req.http.cookie;
         set req.http.cookie = regsuball(req.http.cookie, "; +", ";");
-        set req.http.cookie = regsuball(req.http.cookie, ";(eZSESSID[^=]*)=", "; \1=");
+        set req.http.cookie = regsuball(req.http.cookie, ";(IBX_SESSION_ID[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";(ibexa-[^=]*)=", "; \1=");
         set req.http.cookie = regsuball(req.http.cookie, ";[^ ][^;]*", "");
         set req.http.cookie = regsuball(req.http.cookie, "^[; ]+|[; ]+$", "");
diff --git a/src/bundle/AppCache.php b/src/bundle/AppCache.php
index 2997342..d63eca4 100644
--- a/src/bundle/AppCache.php
+++ b/src/bundle/AppCache.php
@@ -34,7 +34,7 @@ class AppCache extends HttpCache implements CacheInvalidation
     public function __construct(KernelInterface $kernel, $cacheDir = null)
     {
         parent::__construct($kernel, $cacheDir);
-        $this->addSubscriber(new UserContextListener(['session_name_prefix' => 'eZSESSID']));
+        $this->addSubscriber(new UserContextListener(['session_name_prefix' => 'IBX_SESSION_ID']));
         $this->addSubscriber(new PurgeTagsListener(['tags_method' => 'PURGE', 'client_ips' => $this->getInternalAllowedIPs()]));
         $this->addSubscriber(new PurgeListener(['client_ips' => $this->getInternalAllowedIPs()]));
     }
diff --git a/src/bundle/Resources/config/fos_http_cache.yml b/src/bundle/Resources/config/fos_http_cache.yml
index cdb7953..c45ef3b 100644
--- a/src/bundle/Resources/config/fos_http_cache.yml
+++ b/src/bundle/Resources/config/fos_http_cache.yml
@@ -9,4 +9,4 @@ user_context:
     enabled: true
     hash_cache_ttl: 600
     # NOTE: These are also defined/used in AppCache, in Varnish VCL, and Fastly VCL
-    session_name_prefix: eZSESSID
+    session_name_prefix: IBX_SESSION_ID