diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index ad2badd010cd..f6c9050c4c98 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -21404,6 +21404,15 @@ typedef struct {
 
 #define WMI_PEER_PARAM_UL_OFDMA_RTD                    0x2B
 
+/*
+ * Send unsolicited probe response to a connected STA.
+ * 0: Send immediately and stop.
+ * XX: Send every XX ms continuously.
+ * 0xFFFFFFFF: Stop sending immediately.
+ */
+#define WMI_PEER_PARAM_UNSOL_PROBE_RESP_INTVL          0x2C
+
+
 typedef struct {
     A_UINT32 tlv_header; /** TLV tag and len; tag equals WMITLV_TAG_STRUC_wmi_peer_set_param_cmd_fixed_param */
     /** unique id identifying the VDEV, generated by the caller */
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 796f76d3dd21..7dedd1b1a9cd 100644
--- a/fw/wmi_version.h
+++ b/fw/wmi_version.h
@@ -37,7 +37,7 @@
 #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_ 1571
+#define __WMI_REVISION_ 1572
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work