diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 77ba92db0896..5ca8b5336671 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -9839,6 +9839,12 @@ typedef enum {
      */
     WMI_VDEV_PARAM_PACKET_CAPTURE_MODE,         /* 0x93 */
 
+    /**
+     * To configure duration of how many seconds without tx unicast traffic is
+     * considered stale for mcast rate adaptation
+     */
+    WMI_VDEV_PARAM_MCAST_RC_STALE_PERIOD,       /* 0x94 */
+
 
     /*=== ADD NEW VDEV PARAM TYPES ABOVE THIS LINE ===
      * The below vdev param types are used for prototyping, and are
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 40015a5caf65..e11293b73626 100644
--- a/fw/wmi_version.h
+++ b/fw/wmi_version.h
@@ -36,7 +36,7 @@
 #define __WMI_VER_MINOR_    0
 /** WMI revision number has to be incremented when there is a
  *  change that may or may not break compatibility. */
-#define __WMI_REVISION_ 680
+#define __WMI_REVISION_ 681
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work