diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.cpp b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
index 9d291d92c8..ebacb9a312 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.cpp
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
@@ -52,6 +52,10 @@ const AP_Param::GroupInfo AP_InertialSensor::var_info[] PROGMEM = {
     AP_GROUPEND
 };
 
+AP_InertialSensor::AP_InertialSensor() {
+    AP_Param::setup_object_defaults(this, var_info);        
+}
+
 void
 AP_InertialSensor::init( Start_style style,
                          Sample_rate sample_rate,
diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.h b/libraries/AP_InertialSensor/AP_InertialSensor.h
index 94c7033afe..9c5aa5b9bb 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.h
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.h
@@ -22,9 +22,7 @@
 class AP_InertialSensor
 {
 public:
-    AP_InertialSensor() {
-		AP_Param::setup_object_defaults(this, var_info);        
-    }
+    AP_InertialSensor();
 
     enum Start_style {
         COLD_START = 0,