diff --git a/Userland/Libraries/LibJS/Runtime/ECMAScriptFunctionObject.cpp b/Userland/Libraries/LibJS/Runtime/ECMAScriptFunctionObject.cpp
index c6112d3813..d0ef282fee 100644
--- a/Userland/Libraries/LibJS/Runtime/ECMAScriptFunctionObject.cpp
+++ b/Userland/Libraries/LibJS/Runtime/ECMAScriptFunctionObject.cpp
@@ -186,6 +186,8 @@ ThrowCompletionOr<void> ECMAScriptFunctionObject::function_declaration_instantia
                 return IterationDecision::Continue;
             });
         }
+    } else {
+        arguments_object_needed = false;
     }
 
     Environment* environment;