diff --git a/adapter/uhdf2/host/devhost.c b/adapter/uhdf2/host/devhost.c
index ff633388bd8356b18f2bf4c146d55cbf63fae0f5..1f8381a5b2299d0b9bdf7b840470475795e2ac19 100644
--- a/adapter/uhdf2/host/devhost.c
+++ b/adapter/uhdf2/host/devhost.c
@@ -195,6 +195,7 @@ int main(int argc, char **argv)
         looper->Start(looper);
     }
 
+    DevHostServiceFreeInstance(instance);
     HdfPowerManagerExit();
     DevHostDumpDeInit();
     HDF_LOGI("hdf device host %{public}s %{public}d exit", hostName, hostId);