diff --git a/ext/nnstreamer/tensor_filter/tensor_filter_openvino.cc b/ext/nnstreamer/tensor_filter/tensor_filter_openvino.cc
index 698dba0d2..af382c6e8 100644
--- a/ext/nnstreamer/tensor_filter/tensor_filter_openvino.cc
+++ b/ext/nnstreamer/tensor_filter/tensor_filter_openvino.cc
@@ -204,7 +204,6 @@ TensorFilterOpenvino::loadModel (accl_hw hw)
 {
   std::string targetDevice;
   std::vector<std::string> strVector;
-  std::vector<std::string>::iterator strVectorIter;
 
   if (this->_isLoaded) {
     /** @todo Can OpenVino support to replace the loaded model with a new one? */
diff --git a/ext/nnstreamer/tensor_filter/tensor_filter_trix_engine.cc b/ext/nnstreamer/tensor_filter/tensor_filter_trix_engine.cc
index 9f497d7ec..1b26e5f26 100644
--- a/ext/nnstreamer/tensor_filter/tensor_filter_trix_engine.cc
+++ b/ext/nnstreamer/tensor_filter/tensor_filter_trix_engine.cc
@@ -34,6 +34,7 @@ TensorFilterTRIxEngine::TensorFilterTRIxEngine ()
     : dev_type_ (NPUCOND_CONN_UNKNOWN), dev_ (nullptr), model_path_ (nullptr),
       model_meta_ (nullptr), model_id_ (0), trix_in_info_ (), trix_out_info_ ()
 {
+  UNUSED (dev_type_);
   gst_tensors_info_init (addressof (nns_in_info_));
   gst_tensors_info_init (addressof (nns_out_info_));
 }