diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.cpp b/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.cpp
index 57faed240..2bcfba7c3 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.cpp
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.cpp
@@ -261,6 +261,10 @@ VSpline VAbstractSpline::CorrectedSpline(const VSpline &spline, const SplinePoin
     if (position == SplinePointPosition::FirstPoint)
     {
         QLineF line(spline.GetP1(), pos);
+        if (QGuiApplication::keyboardModifiers() == Qt::ShiftModifier)
+        {
+            line.setAngle(VisLine::CorrectAngle(line.angle()));
+        }
 
         qreal newAngle1 = line.angle();
         QString newAngle1F = QString().setNum(newAngle1);
@@ -287,6 +291,10 @@ VSpline VAbstractSpline::CorrectedSpline(const VSpline &spline, const SplinePoin
     else
     {
         QLineF line(spline.GetP4(), pos);
+        if (QGuiApplication::keyboardModifiers() == Qt::ShiftModifier)
+        {
+            line.setAngle(VisLine::CorrectAngle(line.angle()));
+        }
 
         qreal newAngle2 = line.angle();
         QString newAngle2F = QString().setNum(newAngle2);
diff --git a/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.h b/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.h
index 148d499b0..5b77b1dc9 100644
--- a/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.h
+++ b/src/libs/vtools/tools/drawTools/toolcurve/vabstractspline.h
@@ -30,6 +30,7 @@
 #define VABSTRACTSPLINE_H
 
 #include "../vdrawtool.h"
+#include "visualization/line/visline.h"
 
 #include <QGraphicsPathItem>
 
diff --git a/src/libs/vtools/visualization/line/visline.cpp b/src/libs/vtools/visualization/line/visline.cpp
index f8ccb91ce..7a245acdf 100644
--- a/src/libs/vtools/visualization/line/visline.cpp
+++ b/src/libs/vtools/visualization/line/visline.cpp
@@ -43,7 +43,7 @@ VisLine::~VisLine()
 {}
 
 //---------------------------------------------------------------------------------------------------------------------
-qreal VisLine::CorrectAngle(const qreal &angle) const
+qreal VisLine::CorrectAngle(const qreal &angle)
 {
     qreal ang = angle;
     if (angle > 360)
diff --git a/src/libs/vtools/visualization/line/visline.h b/src/libs/vtools/visualization/line/visline.h
index 75c4783d6..80b2ca141 100644
--- a/src/libs/vtools/visualization/line/visline.h
+++ b/src/libs/vtools/visualization/line/visline.h
@@ -44,8 +44,8 @@ public:
 
     virtual int  type() const Q_DECL_OVERRIDE {return Type;}
     enum { Type = UserType + static_cast<int>(Vis::Line)};
+    static qreal CorrectAngle(const qreal &angle);
 protected:
-    qreal        CorrectAngle(const qreal &angle) const;
     QPointF      Ray(const QPointF &firstPoint, const qreal &angle) const;
     QPointF      Ray(const QPointF &firstPoint) const;
     QLineF       Axis(const QPointF &p, const qreal &angle) const;