diff --git a/core/mac/src/include/sir_params.h b/core/mac/src/include/sir_params.h
index c483105c51c8..5a079ade1620 100644
--- a/core/mac/src/include/sir_params.h
+++ b/core/mac/src/include/sir_params.h
@@ -707,8 +707,7 @@ struct sir_mgmt_msg {
 /* UNUSED                              (SIR_LIM_ITC_MSG_TYPES_BEGIN + 6) */
 /* UNUSED                              (SIR_LIM_ITC_MSG_TYPES_BEGIN + 7) */
 /* UNUSED                              (SIR_LIM_ITC_MSG_TYPES_BEGIN + 8) */
-/* Message from ISR upon SP's Replay threshold reached interrupt */
-#define SIR_LIM_REPLAY_THRES_INTERRUPT_MSG (SIR_LIM_ITC_MSG_TYPES_BEGIN + 9)
+/* UNUSED                              (SIR_LIM_ITC_MSG_TYPES_BEGIN + 9) */
 /* Message from HDD after the TD dummy packet is cleaned up */
 #define SIR_LIM_TD_DUMMY_CALLBACK_MSG      (SIR_LIM_ITC_MSG_TYPES_BEGIN + 0xA)
 /* Message from SCH when the STA is ready to be deleted */
diff --git a/core/mac/src/pe/lim/lim_process_message_queue.c b/core/mac/src/pe/lim/lim_process_message_queue.c
index 23d2f513b153..57474da93f7c 100644
--- a/core/mac/src/pe/lim/lim_process_message_queue.c
+++ b/core/mac/src/pe/lim/lim_process_message_queue.c
@@ -1797,9 +1797,6 @@ static void lim_process_messages(tpAniSirGlobal mac_ctx,
 		/* Does not receive CNF or dummy packet */
 		lim_handle_cnf_wait_timeout(mac_ctx, (uint16_t) msg->bodyval);
 		break;
-	case SIR_LIM_REPLAY_THRES_INTERRUPT_MSG:
-		/* Message from ISR upon SP's Replay threshold interrupt */
-		break;
 	case SIR_LIM_CHANNEL_SWITCH_TIMEOUT:
 		lim_process_channel_switch_timeout(mac_ctx);
 		break;
diff --git a/core/mac/src/pe/lim/lim_utils.c b/core/mac/src/pe/lim/lim_utils.c
index 65179b30a8f7..25e081c26e26 100644
--- a/core/mac/src/pe/lim/lim_utils.c
+++ b/core/mac/src/pe/lim/lim_utils.c
@@ -341,8 +341,6 @@ char *lim_msg_str(uint32_t msgType)
 		return "WMA_SUSPEND_ACTIVITY_RSP";
 	case SIR_BB_XPORT_MGMT_MSG:
 		return "SIR_BB_XPORT_MGMT_MSG";
-	case SIR_LIM_REPLAY_THRES_INTERRUPT_MSG:
-		return "SIR_LIM_REPLAY_THRES_INTERRUPT_MSG";
 	case SIR_LIM_JOIN_FAIL_TIMEOUT:
 		return "SIR_LIM_JOIN_FAIL_TIMEOUT";
 	case SIR_LIM_AUTH_FAIL_TIMEOUT:
diff --git a/core/mac/src/sys/legacy/src/utils/src/mac_trace.c b/core/mac/src/sys/legacy/src/utils/src/mac_trace.c
index 7a62a82aadb3..020ff807143d 100644
--- a/core/mac/src/sys/legacy/src/utils/src/mac_trace.c
+++ b/core/mac/src/sys/legacy/src/utils/src/mac_trace.c
@@ -672,7 +672,6 @@ uint8_t *mac_trace_get_lim_msg_string(uint16_t lim_msg)
 {
 	switch (lim_msg) {
 		CASE_RETURN_STRING(SIR_BB_XPORT_MGMT_MSG);
-		CASE_RETURN_STRING(SIR_LIM_REPLAY_THRES_INTERRUPT_MSG);
 		CASE_RETURN_STRING(SIR_LIM_TD_DUMMY_CALLBACK_MSG);
 		CASE_RETURN_STRING(SIR_LIM_SCH_CLEAN_MSG);
 		CASE_RETURN_STRING(SIR_LIM_RADAR_DETECT_IND);