diff --git a/src/opr/include/megbrain/opr/dnn/convolution.h b/src/opr/include/megbrain/opr/dnn/convolution.h
index cd0a410a664d1b3960e1eb30b724fdd9fc6ff45d..0f5afa71a6762c3281760474c8e53554e4997e3a 100644
--- a/src/opr/include/megbrain/opr/dnn/convolution.h
+++ b/src/opr/include/megbrain/opr/dnn/convolution.h
@@ -91,6 +91,7 @@ protected:
     bool mixin_allow_weight_preprocess(const OperatorNodeBase& opr) const;
     virtual SmallVector<TensorLayout> deduce_preprocessed_filter_layout() = 0;
     virtual void scn_do_execute_preprocess() = 0;
+    virtual ~WeightPreprocessExecutor() = default;
 };
 
 } // namespace mixin