diff --git a/src/modules/graphic/osggraph/OsgCar.cpp b/src/modules/graphic/osggraph/OsgCar.cpp
index 95b46a5d..3b1fa62a 100644
--- a/src/modules/graphic/osggraph/OsgCar.cpp
+++ b/src/modules/graphic/osggraph/OsgCar.cpp
@@ -1,12 +1,9 @@
 #include <osg/MatrixTransform>
 
-
-
 #include "OsgLoader.h"
 #include "OsgCar.h"
 #include "OsgMath.h"
 
-
 /*float * flatten(float mat[4][4]){
     float res[16];
     for(int i=0;i<16;i++){
@@ -20,8 +17,6 @@
 
 }*/
 
-
-
 osg::ref_ptr<osg::Node> SDCar::loadCar(tCarElt *car)
 {
     this->car = car;
@@ -177,6 +172,14 @@ void SDCar::updateCar()
     //this->car_branch->setMatrix(osg::Matrix(flatten(car->pub.posMat)));
 }
 
+SDCars::SDCars(void)
+{
+	cars_branch = new osg::Group;
+}
+
+SDCars::~SDCars(void)
+{
+}
 
 void SDCars::addSDCar(SDCar * car)
 {
diff --git a/src/modules/graphic/osggraph/OsgCar.h b/src/modules/graphic/osggraph/OsgCar.h
index 6ee0b29a..b9f7112a 100644
--- a/src/modules/graphic/osggraph/OsgCar.h
+++ b/src/modules/graphic/osggraph/OsgCar.h
@@ -19,14 +19,15 @@ class SDCars
 {
     private :
         std::vector<SDCar *> the_cars;
-        osg::ref_ptr<osg::Group> cars_branch = new osg::Group;
+        osg::ref_ptr<osg::Group> cars_branch;
         tSituation * situation;
 
         void addSDCar(SDCar * car);
 
     public :
 
-
+	SDCars(void);
+	~SDCars(void);
 
         osg::ref_ptr<osg::Node> loadCars(tSituation * pSituation);
         void updateCars();