diff --git a/fw/wmi_unified.h b/fw/wmi_unified.h
index d770bff19e..f2250464b1 100644
--- a/fw/wmi_unified.h
+++ b/fw/wmi_unified.h
@@ -34274,7 +34274,7 @@ typedef struct {
     A_UINT32 dialog_id;     /* TWT dialog ID */
     A_UINT32 suspend_duration_ms;  /* this long time after TWT paused the 1st SP will start (millisecond) */
     A_UINT32 next_twt_size; /* Next TWT subfield Size, refer to IEEE 802.11ax section "9.4.1.60 TWT Information field" */
-    A_UINT32 sp_start_offset; /* Next TWT service period will be offset by this time (microsecond) */
+    A_INT32 sp_start_offset; /* Next TWT service period will be offset by this time (microsecond) */
 } wmi_twt_nudge_dialog_cmd_fixed_param;
 
 /* status code of nudging TWT dialog */