diff --git a/Userland/Libraries/LibJS/AST.cpp b/Userland/Libraries/LibJS/AST.cpp
index f3aff618b8..669968a1ad 100644
--- a/Userland/Libraries/LibJS/AST.cpp
+++ b/Userland/Libraries/LibJS/AST.cpp
@@ -1301,6 +1301,9 @@ Value Identifier::execute(Interpreter& interpreter, GlobalObject& global_object)
 {
     InterpreterNodeScope node_scope { interpreter, *this };
 
+    if (m_argument_index.has_value())
+        return interpreter.vm().argument(m_argument_index.value());
+
     auto value = interpreter.vm().get_variable(string(), global_object);
     if (value.is_empty()) {
         if (!interpreter.exception())