diff --git a/controllers/llamaCPP.h b/controllers/llamaCPP.h
index a7f8762b4..d61536272 100644
--- a/controllers/llamaCPP.h
+++ b/controllers/llamaCPP.h
@@ -1858,6 +1858,7 @@ class llamaCPP : public drogon::HttpController<llamaCPP> {
     }
   }
 
+  ~llamaCPP() { stopBackgroundTask(); }
   METHOD_LIST_BEGIN
   // list path definitions here;
   METHOD_ADD(llamaCPP::chatCompletion, "chat_completion", Post);
diff --git a/llama.cpp b/llama.cpp
index c6c4fc081..a7aee47b9 160000
--- a/llama.cpp
+++ b/llama.cpp
@@ -1 +1 @@
-Subproject commit c6c4fc081c1df1c60a9bfe3e6a3fd086f1a29ec7
+Subproject commit a7aee47b98e45539d491071b25778b833b77e387