diff --git a/src/models/models.h b/src/models/models.h
index 8b7f8c3bb8..920a8e5798 100644
--- a/src/models/models.h
+++ b/src/models/models.h
@@ -542,6 +542,7 @@ private:
     const llama_model & model;
 };
 
+// TODO: derive llm_build_delta_net_base instead
 struct llm_build_qwen35 : public llm_graph_context {
     llm_build_qwen35(const llama_model & model, const llm_graph_params & params);
 private:
@@ -602,6 +603,7 @@ private:
     const llama_model & model;
 };
 
+// TODO: derive llm_build_delta_net_base instead
 struct llm_build_qwen35moe : public llm_graph_context {
     llm_build_qwen35moe(const llama_model & model, const llm_graph_params & params);
 private: