diff --git a/src/physics/physical_object.cpp b/src/physics/physical_object.cpp
index 073cf30ad..7f11763c2 100644
--- a/src/physics/physical_object.cpp
+++ b/src/physics/physical_object.cpp
@@ -79,7 +79,7 @@ PhysicalObject::PhysicalObject(const XMLNode &xml_node)
 // -----------------------------------------------------------------------------
 
 PhysicalObject::PhysicalObject(const std::string& model,
-                               bodyTypes shape, int mass, int radius,
+                               bodyTypes shape, float mass, float radius,
                                const core::vector3df& hpr,
                                const core::vector3df& pos,
                                const core::vector3df& scale)
diff --git a/src/physics/physical_object.hpp b/src/physics/physical_object.hpp
index 1a7ff83ba..ccdc8030e 100644
--- a/src/physics/physical_object.hpp
+++ b/src/physics/physical_object.hpp
@@ -70,7 +70,7 @@ public:
                  PhysicalObject (const XMLNode &node);
     
                  PhysicalObject(const std::string& model,
-                                bodyTypes shape, int mass, int radius,
+                                bodyTypes shape, float mass, float radius,
                                 const core::vector3df& hpr,
                                 const core::vector3df& pos,
                                 const core::vector3df& scale);
diff --git a/src/tracks/track_object_manager.cpp b/src/tracks/track_object_manager.cpp
index b76ac222c..774e28816 100644
--- a/src/tracks/track_object_manager.cpp
+++ b/src/tracks/track_object_manager.cpp
@@ -193,12 +193,14 @@ void TrackObjectManager::enableFog(bool enable)
 // ----------------------------------------------------------------------------
 
 PhysicalObject* TrackObjectManager::insertObject(const std::string& model,
-                                                 PhysicalObject::bodyTypes shape, int mass, int radius,
+                                                 PhysicalObject::bodyTypes shape,
+                                                 float mass, float radius,
                                                  const core::vector3df& hpr,
                                                  const core::vector3df& pos,
                                                  const core::vector3df& scale)
 {
-    PhysicalObject* object = new PhysicalObject(model, shape, mass, radius, hpr, pos, scale);
+    PhysicalObject* object = new PhysicalObject(model, shape, mass, radius, 
+                                                hpr, pos, scale);
     object->init();
     m_all_objects.push_back(object);
     return object;
diff --git a/src/tracks/track_object_manager.hpp b/src/tracks/track_object_manager.hpp
index 673ae7e48..f20585d6c 100644
--- a/src/tracks/track_object_manager.hpp
+++ b/src/tracks/track_object_manager.hpp
@@ -55,7 +55,8 @@ public:
     void enableFog(bool enable);
 
     PhysicalObject* insertObject(const std::string& model,
-                                 PhysicalObject::bodyTypes shape, int mass, int radius,
+                                 PhysicalObject::bodyTypes shape, 
+                                 float mass, float radius,
                                  const core::vector3df& hpr,
                                  const core::vector3df& pos,
                                  const core::vector3df& scale);