diff --git a/libraries/AP_InertialSensor/AP_InertialSensor_L3GD20.cpp b/libraries/AP_InertialSensor/AP_InertialSensor_L3GD20.cpp
index f0f671d320..0497f04474 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor_L3GD20.cpp
+++ b/libraries/AP_InertialSensor/AP_InertialSensor_L3GD20.cpp
@@ -286,6 +286,8 @@ bool AP_InertialSensor_L3GD20::_data_ready()
     if (_drdy_pin) {
         return _drdy_pin->read() != 0;
     }
+    // TODO: read status register
+    return false;
 }
 
 /**