diff --git a/Userland/Libraries/LibSQL/Serializer.h b/Userland/Libraries/LibSQL/Serializer.h
index 0977b53d78..f64fe97789 100644
--- a/Userland/Libraries/LibSQL/Serializer.h
+++ b/Userland/Libraries/LibSQL/Serializer.h
@@ -160,6 +160,7 @@ private:
 
     ByteBuffer m_buffer {};
     size_t m_current_offset { 0 };
+    // FIXME: make this a NonnullRefPtr<Heap> so we can get rid of the null checks
     RefPtr<Heap> m_heap { nullptr };
 };