diff --git a/pkg/planner/core/plan_base.go b/pkg/planner/core/plan_base.go
index 85d23bab29b27..ae8327c177953 100644
--- a/pkg/planner/core/plan_base.go
+++ b/pkg/planner/core/plan_base.go
@@ -84,7 +84,7 @@ type PhysicalPlan interface {
 	Attach2Task(...Task) Task
 
 	// ToPB converts physical plan to tipb executor.
-	ToPB(ctx PlanContext, storeType kv.StoreType) (*tipb.Executor, error)
+	ToPB(ctx *BuildPBContext, storeType kv.StoreType) (*tipb.Executor, error)
 
 	// GetChildReqProps gets the required property by child index.
 	GetChildReqProps(idx int) *property.PhysicalProperty