diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b22266b7a..6f9588cb3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,6 +28,7 @@ jobs:
                     - '8.1'
                     - '8.2'
                     - '8.3'
+                    - '8.4'
 
         steps:
             - name: "Checkout code"
@@ -79,6 +80,7 @@ jobs:
                     - '8.1'
                     - '8.2'
                     - '8.3'
+                    - '8.4'
                 extension:
                     - 'cache-extra'
                     - 'cssinliner-extra'
diff --git a/CHANGELOG b/CHANGELOG
index 21bf1278b..38421d5f2 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,6 @@
 # 3.9.0 (2024-XX-XX)
 
+ * Add support for PHP 8.4
  * Deprecate AbstractNodeVisitor
  * Deprecate passing Template to Environment::resolveTemplate(), Environment::load(), and Template::loadTemplate()
  * Add a new "yield" mode for output generation;
diff --git a/src/Node/Expression/CallExpression.php b/src/Node/Expression/CallExpression.php
index 5c7326bf4..71a9c739a 100644
--- a/src/Node/Expression/CallExpression.php
+++ b/src/Node/Expression/CallExpression.php
@@ -297,7 +297,7 @@ private function reflectCallable($callable)
         }
         $r = new \ReflectionFunction($closure);
 
-        if (str_contains($r->name, '{closure}')) {
+        if (str_contains($r->name, '{closure')) {
             return $this->reflector = [$r, $callable, 'Closure'];
         }