diff --git a/src/Gui/SoTouchEvents.cpp b/src/Gui/SoTouchEvents.cpp
index 2c5d4f5e66..0e1bf608fe 100644
--- a/src/Gui/SoTouchEvents.cpp
+++ b/src/Gui/SoTouchEvents.cpp
@@ -84,8 +84,8 @@ SoGesturePinchEvent::SoGesturePinchEvent(QPinchGesture* qpinch, QWidget *widget)
     deltaZoom = qpinch->scaleFactor();
     totalZoom = qpinch->totalScaleFactor();
 
-    deltaAngle = unbranchAngle((qpinch->rotationAngle()-qpinch->lastRotationAngle()) / 180.0 * M_PI);
-    totalAngle = qpinch->totalRotationAngle() / 180 * M_PI;
+    deltaAngle = -unbranchAngle((qpinch->rotationAngle()-qpinch->lastRotationAngle()) / 180.0 * M_PI);
+    totalAngle = -qpinch->totalRotationAngle() / 180 * M_PI;
 
     state = SbGestureState(qpinch->state());
 
diff --git a/src/Gui/WinNativeGestureRecognizers.cpp b/src/Gui/WinNativeGestureRecognizers.cpp
index e425592e69..8239ead9ea 100644
--- a/src/Gui/WinNativeGestureRecognizers.cpp
+++ b/src/Gui/WinNativeGestureRecognizers.cpp
@@ -129,7 +129,7 @@ QGestureRecognizer::Result WinNativeGestureRecognizerPinch::recognize(QGesture *
         }
         double ang = 0.0;
         if (bRotate)
-            ang=GID_ROTATE_ANGLE_FROM_ARGUMENT(LOWORD(ev->argument)) / M_PI * 180.0;
+            ang = -GID_ROTATE_ANGLE_FROM_ARGUMENT(LOWORD(ev->argument)) / M_PI * 180.0;
         if (q->state() == Qt::NoGesture) {
             //start of a new gesture, prefill stuff
             //d->isNewSequence = true;