diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index 073bf3ac0c..fb2c97758d 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -20235,8 +20235,13 @@ typedef struct {
     A_UINT32 emlsr_trans_delay_us;
     /** eMLSR padding delay in microseconds */
     A_UINT32 emlsr_padding_delay_us;
-    /** Medium Synchronization Duration in microseconds */
-    A_UINT32 msd_dur_us;
+    union {
+        /** Medium Synchronization Duration field in units of 32 microseconds */
+        A_UINT32 msd_dur_subfield;
+        /** DEPRECATED - DO NOT USE.
+         * Medium Synchronization Duration in microseconds */
+        A_UINT32 msd_dur_us;
+    };
     /** Medium Synchronization OFDM ED Threshold */
     A_UINT32 msd_ofdm_ed_thr;
     /** Medium Synchronization Max Num of TXOPs */
diff --git a/fw/wmi_version.h b/fw/wmi_version.h
index 380d14ae83..3cc972127c 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_ 1316
+#define __WMI_REVISION_ 1317
 
 /** The Version Namespace should not be normally changed. Only
  *  host and firmware of the same WMI namespace will work