diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 832df65335e3..bfc919736fe9 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -4328,6 +4328,11 @@ typedef enum {
      *  bit 16~31 : 11ag mode TX chain number.
      */
     WMI_PDEV_PARAM_ABG_MODE_TX_CHAIN_NUM,
+    /** Enable/Disable cck txfir override
+     *  bit 0 - enable (1) or disale (0) CCK tx FIR
+     *  bits 31:1 - unused / reserved (set to 0)
+     */
+    WMI_PDEV_PARAM_ENABLE_CCK_TXFIR_OVERRIDE,
 } WMI_PDEV_PARAM;
 
 typedef struct {
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 9748366dc1ed..b45b715852e4 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_ 405
+#define __WMI_REVISION_ 406
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work