diff --git a/libraries/DataFlash/DataFlash.h b/libraries/DataFlash/DataFlash.h
index 97132e3015..bc689396c9 100644
--- a/libraries/DataFlash/DataFlash.h
+++ b/libraries/DataFlash/DataFlash.h
@@ -136,7 +136,7 @@ public:
     void Log_Write_ESC(void);
     void Log_Write_Airspeed(AP_Airspeed &airspeed);
     void Log_Write_Attitude(AP_AHRS &ahrs, const Vector3f &targets);
-    void Log_Write_Current(const AP_BattMonitor &battery, int16_t throttle);
+    void Log_Write_Current(const AP_BattMonitor &battery);
     void Log_Write_Compass(const Compass &compass, uint64_t time_us=0);
     void Log_Write_Mode(uint8_t mode, uint8_t reason = 0);
 
diff --git a/libraries/DataFlash/LogFile.cpp b/libraries/DataFlash/LogFile.cpp
index b623cd63a5..14d77815c1 100644
--- a/libraries/DataFlash/LogFile.cpp
+++ b/libraries/DataFlash/LogFile.cpp
@@ -1638,7 +1638,7 @@ void DataFlash_Class::Log_Write_Attitude(AP_AHRS &ahrs, const Vector3f &targets)
 }
 
 // Write an Current data packet
-void DataFlash_Class::Log_Write_Current(const AP_BattMonitor &battery, int16_t throttle)
+void DataFlash_Class::Log_Write_Current(const AP_BattMonitor &battery)
 {
     float voltage2 = battery.voltage2();
     struct log_Current pkt = {