diff --git a/src/operator/subgraph/dnnl/dnnl_batch_dot.cc b/src/operator/subgraph/dnnl/dnnl_batch_dot.cc
index d48f5171c6cf..612629da6ccf 100644
--- a/src/operator/subgraph/dnnl/dnnl_batch_dot.cc
+++ b/src/operator/subgraph/dnnl/dnnl_batch_dot.cc
@@ -173,4 +173,4 @@ NNVM_REGISTER_OP(_sg_onednn_batch_dot)
 }  // namespace op
 }  // namespace mxnet
 
-#endif  // if MXNET_USE_ONEDNN == 1
\ No newline at end of file
+#endif  // if MXNET_USE_ONEDNN == 1
diff --git a/src/operator/subgraph/dnnl/dnnl_batch_dot_property.h b/src/operator/subgraph/dnnl/dnnl_batch_dot_property.h
index 3e42f4ad798d..dfb7e05256fd 100644
--- a/src/operator/subgraph/dnnl/dnnl_batch_dot_property.h
+++ b/src/operator/subgraph/dnnl/dnnl_batch_dot_property.h
@@ -34,7 +34,6 @@ namespace op {
 
 class SgDNNLBatchDotSelector : public SubgraphSelector {
  public:
-  explicit SgDNNLBatchDotSelector() {}
 
   bool Select(const nnvm::Node& n) override {
     return n.op() && n.op()->name == "batch_dot";
@@ -51,8 +50,6 @@ class SgDNNLBatchDotSelector : public SubgraphSelector {
 
 class SgDNNLBatchDotProperty : public SubgraphProperty {
  public:
-  SgDNNLBatchDotProperty() {}
-
   static SubgraphPropertyPtr Create() {
     static const std::string& name = "DNNL Batch Dot optimization pass";
     auto property                  = std::make_shared<SgDNNLBatchDotProperty>();
@@ -100,4 +97,4 @@ class SgDNNLBatchDotProperty : public SubgraphProperty {
 }  // namespace mxnet
 
 #endif  // if MXNET_USE_ONEDNN == 1
-#endif  // MXNET_OPERATOR_SUBGRAPH_DNNL_DNNL_BATCH_DOT_PROPERTY_H_
\ No newline at end of file
+#endif  // MXNET_OPERATOR_SUBGRAPH_DNNL_DNNL_BATCH_DOT_PROPERTY_H_