diff --git a/fw/wmi_services.h b/fw/wmi_services.h
index 7b84c6f47c45..68e14d5592fa 100644
--- a/fw/wmi_services.h
+++ b/fw/wmi_services.h
@@ -674,6 +674,7 @@ typedef  enum  {
     WMI_SERVICE_MGMT_SRNG_SUPPORT = 420, /* FW supports MGMT frame forwarding via host provided SRNG instead of WMI */
     WMI_SERVICE_WDS_NULL_FRAME_SUPPORT = 421,
     WMI_SERVICE_MLO_SAP_CONCURRENCY_SUPPORT = 422, /* Indicates FW supports MLO SAP+STA Concurrency */
+    WMI_SERVICE_MEC_AGING_TIMER_SUPPORT = 423, /* FW supports multicast echo check aging timer */
 
 
     WMI_MAX_EXT2_SERVICE