diff --git a/libraries/AP_FETtecOneWire/AP_FETtecOneWire.h b/libraries/AP_FETtecOneWire/AP_FETtecOneWire.h
index 56d3099422..031c9c3a6f 100644
--- a/libraries/AP_FETtecOneWire/AP_FETtecOneWire.h
+++ b/libraries/AP_FETtecOneWire/AP_FETtecOneWire.h
@@ -193,7 +193,6 @@ private:
     };
 
     uint32_t _min_fast_throttle_period_us;  ///< minimum allowed fast-throttle command transmit period
-    uint32_t _last_not_running_warning_ms;  ///< last time we warned the user their ESCs are stuffed
     int32_t _motor_mask;                    ///< an un-mutable copy of the _motor_mask_parameter taken before _init_done goes true
     int32_t _reverse_mask;                  ///< a copy of the _reverse_mask_parameter taken while not armed
     int32_t _running_mask;                  ///< a bitmask of the actively running ESCs