diff --git a/Libraries/LibWeb/HTML/Scripting/Agent.cpp b/Libraries/LibWeb/HTML/Scripting/Agent.cpp
index a08c961f749..f499cd621e9 100644
--- a/Libraries/LibWeb/HTML/Scripting/Agent.cpp
+++ b/Libraries/LibWeb/HTML/Scripting/Agent.cpp
@@ -15,7 +15,7 @@ Agent& relevant_agent(JS::Object const& object)
 {
     // The relevant agent for a platform object platformObject is platformObject's relevant Realm's agent.
     // Spec Note: This pointer is not yet defined in the JavaScript specification; see tc39/ecma262#1357.
-    return as<Bindings::WebEngineCustomData>(relevant_realm(object).vm().custom_data())->agent;
+    return static_cast<Bindings::WebEngineCustomData*>(relevant_realm(object).vm().custom_data())->agent;
 }
 
 }