diff --git a/libs/piqt/piqt.h b/libs/piqt/piqt.h
index e0a9664..43bd1a9 100644
--- a/libs/piqt/piqt.h
+++ b/libs/piqt/piqt.h
@@ -76,8 +76,8 @@ inline const PIMathVectorT3d Q2PIVector3(const QVector3D & v) {return PIMathVect
 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());}
 
-inline const QRectF PI2QRect(const PIRectd & v) {return QRectF(v.left(), v.top(), v.width(), v.height());}
-inline const PIRectd Q2PIRect(const QRectF & v) {return PIRectd(v.left(), v.bottom(), v.width(), v.height());}
+inline const QRectF PI2QRect(const PIRectd & v) {return QRectF(v.left(), v.bottom(), v.width(), v.height());}
+inline const PIRectd Q2PIRect(const QRectF & v) {return PIRectd(v.left(), v.top(), v.width(), v.height());}
 
 inline const QLineF PI2QLine(const PILined & v) {return QLineF(PI2QPoint(v.p0), PI2QPoint(v.p1));}
 inline const PILined Q2PILine(const QLineF & v) {return PILined(Q2PIPoint(v.p1()), Q2PIPoint(v.p2()));}