diff --git a/src/Vehicle/Vehicle.cc b/src/Vehicle/Vehicle.cc
index abbc77a..a305380 100644
--- a/src/Vehicle/Vehicle.cc
+++ b/src/Vehicle/Vehicle.cc
@@ -167,8 +167,8 @@ Vehicle::Vehicle(LinkInterface*             link,
     , _localPositionSetpointFactGroup(this)
     , _escStatusFactGroup           (this)
     , _estimatorStatusFactGroup     (this)
-    , _terrainFactGroup             (this)
     , _hygrometerFactGroup          (this)
+    , _terrainFactGroup             (this)
     , _terrainProtocolHandler       (new TerrainProtocolHandler(this, &_terrainFactGroup, this))
 {
     _linkManager = _toolbox->linkManager();
@@ -446,8 +446,8 @@ void Vehicle::_commonInit()
     _addFactGroup(&_localPositionSetpointFactGroup,_localPositionSetpointFactGroupName);
     _addFactGroup(&_escStatusFactGroup,         _escStatusFactGroupName);
     _addFactGroup(&_estimatorStatusFactGroup,   _estimatorStatusFactGroupName);
-    _addFactGroup(&_terrainFactGroup,           _terrainFactGroupName);
     _addFactGroup(&_hygrometerFactGroup,        _hygrometerFactGroupName);
+    _addFactGroup(&_terrainFactGroup,           _terrainFactGroupName);
 
     // Add firmware-specific fact groups, if provided
     QMap<QString, FactGroup*>* fwFactGroups = _firmwarePlugin->factGroups();
diff --git a/src/Vehicle/Vehicle.h b/src/Vehicle/Vehicle.h
index d1d69c5..c47d9fc 100644
--- a/src/Vehicle/Vehicle.h
+++ b/src/Vehicle/Vehicle.h
@@ -1362,8 +1362,8 @@ private:
     static const char* _localPositionSetpointFactGroupName;
     static const char* _escStatusFactGroupName;
     static const char* _estimatorStatusFactGroupName;
-    static const char* _terrainFactGroupName;
     static const char* _hygrometerFactGroupName;
+    static const char* _terrainFactGroupName;
 
     static const int _vehicleUIUpdateRateMSecs      = 100;
 
diff --git a/src/Vehicle/VehicleHygrometerFactGroup.h b/src/Vehicle/VehicleHygrometerFactGroup.h
index 2641b49..b5527e6 100644
--- a/src/Vehicle/VehicleHygrometerFactGroup.h
+++ b/src/Vehicle/VehicleHygrometerFactGroup.h
@@ -37,7 +37,7 @@ public:
 protected:
     void _handleHygrometerSensor        (mavlink_message_t& message);
 
-    Fact _hygroIDFact;
     Fact _hygroTempFact;
     Fact _hygroHumiFact;
+    Fact _hygroIDFact;
 };