diff --git a/be/src/vec/exec/vtable_function_node.h b/be/src/vec/exec/vtable_function_node.h
index d2ca9589c2..cfe74860b1 100644
--- a/be/src/vec/exec/vtable_function_node.h
+++ b/be/src/vec/exec/vtable_function_node.h
@@ -56,6 +56,7 @@ public:
     Status prepare(RuntimeState* state) override;
     Status open(RuntimeState* state) override {
         RETURN_IF_ERROR(alloc_resource(state));
+        RETURN_IF_ERROR(VExpr::open(_vfn_ctxs, state));
         return _children[0]->open(state);
     }
     Status get_next(RuntimeState* state, Block* block, bool* eos) override;