diff --git a/include/tvm/relay/op.h b/include/tvm/relay/op.h
index e426ceba8b6d..e4c96490ff53 100644
--- a/include/tvm/relay/op.h
+++ b/include/tvm/relay/op.h
@@ -260,7 +260,7 @@ class OpRegistry {
   /*! \brief The operator */
   Op op_;
   // private constructor
-  OpRegistry();
+  TVM_DLL OpRegistry();
   // return internal pointer to op.
   inline OpNode* get();
   // update the attribute OpMap