diff --git a/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp b/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
index 14cd4d4e1f..ccc794e25d 100644
--- a/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
+++ b/Userland/Libraries/LibJS/Runtime/NumberConstructor.cpp
@@ -42,7 +42,7 @@ void NumberConstructor::initialize(GlobalObject& global_object)
     define_native_function(vm.names.isInteger, is_integer, 1, attr);
     define_native_function(vm.names.isNaN, is_nan, 1, attr);
     define_native_function(vm.names.isSafeInteger, is_safe_integer, 1, attr);
-    define_property(vm.names.parseFloat, global_object.get(vm.names.parseFloat));
+    define_property(vm.names.parseFloat, global_object.get(vm.names.parseFloat), attr);
     define_property(vm.names.EPSILON, Value(EPSILON_VALUE), 0);
     define_property(vm.names.MAX_VALUE, Value(NumericLimits<double>::max()), 0);
     define_property(vm.names.MIN_VALUE, Value(NumericLimits<double>::min()), 0);