diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 59ca333b560c..67c54b959e33 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -49328,6 +49328,11 @@ typedef struct {
      * training has been done
      */
     A_UINT32 phy_mode;
+    /* size_kb:
+     * Size of the buffer consumed to write the I/Q samples data by uCode,
+     * in units of KB
+     */
+    A_UINT32 size_kb;
 } wmi_pdev_power_boost_event_fixed_param;
 
 typedef enum {
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 31de7d7ceb97..493a0644e416 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_ 1538
+#define __WMI_REVISION_ 1539
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work