diff --git a/piqt/piqt.h b/piqt/piqt.h
index cc6d829..9eeff18 100644
--- a/piqt/piqt.h
+++ b/piqt/piqt.h
@@ -38,8 +38,8 @@ inline const PIByteArray Q2PIByteArray(const QByteArray & v) {return PIByteArray
 inline const QPointF PI2QVector2(const PIMathVectorT2d & v) {return QPointF(v[0], v[1]);}
 inline const QVector3D PI2QVector3(const PIMathVectorT3d & v) {return QVector3D(v[0], v[1], v[2]);}
 
-inline const PIMathVectorT2d Q2PIVector2(const QPointF & v) {return PIMathVectorT2d(double(v.x()), double(v.y()), 0.);}
-inline const PIMathVectorT3d Q2PIVector3(const QVector3D & v) {return PIMathVectorT3d(double(v.x()), double(v.y()), double(v.z()));}
+inline const PIMathVectorT2d Q2PIVector2(const QPointF & v) {return createVectorT2d(double(v.x()), double(v.y()));}
+inline const PIMathVectorT3d Q2PIVector3(const QVector3D & v) {return createVectorT3d(double(v.x()), double(v.y()), double(v.z()));}
 
 inline const QPointF PI2QPoint(const PIPointd & v) {return QPointF(v.x, v.y);}
 inline const PIPointd Q2PIPoint(const QPointF & v) {return PIPointd(v.x(), v.y());}