diff --git a/src/backend/commands/copyfrom.c b/src/backend/commands/copyfrom.c
index 12781963b4f..0c51e5ba5e1 100644
--- a/src/backend/commands/copyfrom.c
+++ b/src/backend/commands/copyfrom.c
@@ -129,6 +131,7 @@ static void CopyFromBinaryEnd(CopyFromState cstate);
 
 /* text format */
 static const CopyFromRoutine CopyFromRoutineText = {
+	.CopyFromEstimateStateSpace = CopyFromBuiltinsEstimateSpace,