diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 1b6682847ee1..f460fc47cf6a 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -29697,9 +29697,21 @@ typedef struct {
     A_UINT32 chan_width; /* wmi_channel_width */
 } wmi_chan_width_peer_list;
 
+#define WMI_PEER_CHAN_WIDTH_SWITCH_SET_VALID_VDEV_ID(comp) WMI_SET_BITS(comp, 31,1, 1)
+#define WMI_PEER_CHAN_WIDTH_SWITCH_GET_VALID_VDEV_ID(comp) WMI_GET_BITS(comp, 31, 1)
+
+#define WMI_PEER_CHAN_WIDTH_SWITCH_SET_VDEV_ID(comp, value) WMI_SET_BITS(comp, 0, 8, value)
+#define WMI_PEER_CHAN_WIDTH_SWITCH_GET_VDEV_ID(comp) WMI_GET_BITS(comp, 0, 8)
+
 typedef struct {
     A_UINT32 tlv_header; /* TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_peer_chan_width_switch_cmd_fixed_param */
     A_UINT32 num_peers;
+    /* vdev_var:
+     * The MSb (bit 31) indicates that the vdev_id is valid.
+     * The LSB is used to infer the actual vdev_id.
+     * The other bits can be used for future enhancements.
+     */
+    A_UINT32 vdev_var;
     /*
      * Following this structure is the TLV:
      * struct wmi_chan_width_peer_list chan_width_peer_info[num_peers];
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 7e145c6ce866..d82317c153dd 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_ 914
+#define __WMI_REVISION_ 915
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work