diff --git a/etk/math/Vector2D.h b/etk/math/Vector2D.h
index 20ea3ea..df441f4 100644
--- a/etk/math/Vector2D.h
+++ b/etk/math/Vector2D.h
@@ -24,11 +24,19 @@ namespace etk
 			/*****************************************************
 			 *    Constructor
 			 *****************************************************/
-			 Vector2D(void) { }; // do nothing ==> better for optimisation
-			 Vector2D(T _x, T _y) { m_floats[0] = _x; m_floats[1] = _y; };
-			 Vector2D(const Vector2D<double>& obj)  { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
-			 Vector2D(const Vector2D<float>& obj)   { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
-			 Vector2D(const Vector2D<int32_t>& obj) { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
+			Vector2D(void)
+			{
+				m_floats[0]=0;
+				m_floats[1]=0;
+			}; // do nothing ==> better for optimisation
+			Vector2D(T _x, T _y)
+			{
+				m_floats[0] = _x;
+				m_floats[1] = _y;
+			};
+			Vector2D(const Vector2D<double>& obj)  { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
+			Vector2D(const Vector2D<float>& obj)   { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
+			Vector2D(const Vector2D<int32_t>& obj) { m_floats[0] = (T)obj.x(); m_floats[1] = (T)obj.y(); };
 			~Vector2D(void) { };
 			/*****************************************************
 			 *    = assigment
diff --git a/etk/math/Vector3D.h b/etk/math/Vector3D.h
index 433b993..f907124 100644
--- a/etk/math/Vector3D.h
+++ b/etk/math/Vector3D.h
@@ -29,7 +29,10 @@ namespace etk
 			 */
 			Vector3D(void)
 			{
-				
+				m_floats[0]=0;
+				m_floats[1]=0;
+				m_floats[2]=0;
+				m_floats[3]=0;
 			}
 			/**
 			 * @brief Constructor from scalars