diff --git a/Userland/Libraries/LibJS/Runtime/Date.cpp b/Userland/Libraries/LibJS/Runtime/Date.cpp
index b29830cace..a4787ee438 100644
--- a/Userland/Libraries/LibJS/Runtime/Date.cpp
+++ b/Userland/Libraries/LibJS/Runtime/Date.cpp
@@ -36,6 +36,8 @@ Date::Date(double date_value, Object& prototype)
 {
 }
 
+Date::~Date() = default;
+
 ErrorOr<String> Date::iso_date_string() const
 {
     int year = year_from_time(m_date_value);
diff --git a/Userland/Libraries/LibJS/Runtime/Date.h b/Userland/Libraries/LibJS/Runtime/Date.h
index 5f7d64e32e..2dae8eead9 100644
--- a/Userland/Libraries/LibJS/Runtime/Date.h
+++ b/Userland/Libraries/LibJS/Runtime/Date.h
@@ -19,7 +19,8 @@ class Date final : public Object {
 public:
     static NonnullGCPtr<Date> create(Realm&, double date_value);
 
-    virtual ~Date() override = default;
+    // Out of line to ensure we have a key function
+    virtual ~Date() override;
 
     double date_value() const { return m_date_value; }
     void set_date_value(double value) { m_date_value = value; }