diff --git a/samples/arch/smp/pktqueue/src/main.c b/samples/arch/smp/pktqueue/src/main.c
index 009cd2de966..cfffd813a8b 100644
--- a/samples/arch/smp/pktqueue/src/main.c
+++ b/samples/arch/smp/pktqueue/src/main.c
@@ -5,7 +5,27 @@
  */
 
 #include "pktqueue.h"
-#include "main.h"
+
+/* Amount of parallel processed sender/receiver queues of packet headers */
+#define QUEUE_NUM 2
+
+/* Amount of execution threads per pair of queues*/
+#define THREADS_NUM (CONFIG_MP_MAX_NUM_CPUS+1)
+
+/* Amount of packet headers in a queue */
+#define SIZE_OF_QUEUE 5000
+
+/* Size of packet header (in bytes) */
+#define SIZE_OF_HEADER 24
+
+/* CRC16 polynomial */
+#define POLYNOMIAL 0x8005
+
+/* CRC bytes in the packet */
+#define CRC_BYTE_1 10
+#define CRC_BYTE_2 11
+
+#define STACK_SIZE	2048
 
 static struct k_thread tthread[THREADS_NUM*QUEUE_NUM];
 static struct k_thread qthread[QUEUE_NUM];
diff --git a/samples/arch/smp/pktqueue/src/main.h b/samples/arch/smp/pktqueue/src/main.h
deleted file mode 100644
index 20020563ca1..00000000000
--- a/samples/arch/smp/pktqueue/src/main.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2020 Synopsys, Inc.
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include <zephyr/kernel.h>
-#include <stdio.h>
-#include <zephyr/sys/crc.h>
-#include <zephyr/random/random.h>
-
-
-/* Amount of parallel processed sender/receiver queues of packet headers */
-#define QUEUE_NUM 2
-
-/* Amount of execution threads per pair of queues*/
-#define THREADS_NUM (CONFIG_MP_MAX_NUM_CPUS+1)
-
-/* Amount of packet headers in a queue */
-#define SIZE_OF_QUEUE 5000
-
-/* Size of packet header (in bytes) */
-#define SIZE_OF_HEADER 24
-
-/* CRC16 polynomial */
-#define POLYNOMIAL 0x8005
-
-/* CRC bytes in the packet */
-#define CRC_BYTE_1 10
-#define CRC_BYTE_2 11
-
-#define STACK_SIZE	2048