diff --git a/fw/wmi_tlv_defs.h b/fw/wmi_tlv_defs.h
index b416a70b3ac2..5882d58ecd24 100644
--- a/fw/wmi_tlv_defs.h
+++ b/fw/wmi_tlv_defs.h
@@ -1856,7 +1856,8 @@ WMITLV_CREATE_PARAM_STRUC(WMI_WOW_UDP_SVC_OFLD_CMDID);
 WMITLV_CREATE_PARAM_STRUC(WMI_WOW_HOSTWAKEUP_GPIO_PIN_PATTERN_CONFIG_CMDID);
 
 #define WMITLV_TABLE_WMI_WOW_SET_ACTION_WAKE_UP_CMDID(id,op,buf,len) \
-    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_wow_set_action_wake_up_cmd_fixed_param, WMI_WOW_SET_ACTION_WAKE_UP_CMD_fixed_param, fixed_param, WMITLV_SIZE_FIX)
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_STRUC_wmi_wow_set_action_wake_up_cmd_fixed_param, WMI_WOW_SET_ACTION_WAKE_UP_CMD_fixed_param, fixed_param, WMITLV_SIZE_FIX) \
+    WMITLV_ELEM(id,op,buf,len, WMITLV_TAG_ARRAY_UINT32, A_UINT32, action_bitmaps_per_category, WMITLV_SIZE_VAR)
 WMITLV_CREATE_PARAM_STRUC(WMI_WOW_SET_ACTION_WAKE_UP_CMDID);
 
 /* Wow enable/disable wake up Cmd */
diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index eb743fa45284..e593add1c6bb 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -10665,13 +10665,15 @@ typedef struct {
     A_UINT32 vdev_id;
     A_UINT32 operation; /* 0 reset to fw default, 1 set the bits, 2 add the setting bits, 3 delete the setting bits */
     A_UINT32 action_category_map[MAX_SUPPORTED_ACTION_CATEGORY_ELE_LIST];
-    /* action_bitmaps_per_category -
+    /* This fixed_param TLV is followed by these additional TLV's
+     * action_bitmaps_per_category -
      * Each element is a 32-bit bitmap indicating which subcategories
      * for that particular action category are considered for WoW wakeup
      * (if the subcategory's bit is 0) or ignored for WoW wakeup (if the
      * subcategory's bit is 1).
+     *
+     * A_UINT32 action_bitmaps_per_category[]; <-- variable length array
      */
-    A_UINT32 action_bitmaps_per_category[MAX_SUPPORTED_ACTION_CATEGORY];
 } WMI_WOW_SET_ACTION_WAKE_UP_CMD_fixed_param;
 
 typedef struct wow_event_info_s {
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 9cda5343903a..d7e78e2dd657 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_ 414
+#define __WMI_REVISION_ 415
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work