diff --git a/src/backend/replication/pgoutput/pgoutput.c b/src/backend/replication/pgoutput/pgoutput.c
index 5fc0defec3a..abb82ecb18d 100644
--- a/src/backend/replication/pgoutput/pgoutput.c
+++ b/src/backend/replication/pgoutput/pgoutput.c
@@ -1587,6 +1587,16 @@ pgoutput_change(LogicalDecodingContext *ctx, ReorderBufferTXN *txn,
 		ancestor = NULL;
 	}
 
+	/* Drop the new slots that were used to store the converted tuples. */
+	if (relentry->attrmap)
+	{
+		if (old_slot)
+			ExecDropSingleTupleTableSlot(old_slot);
+
+		if (new_slot)
+			ExecDropSingleTupleTableSlot(new_slot);
+	}
+
 	/* Cleanup */
 	MemoryContextSwitchTo(old);
 	MemoryContextReset(data->context);