1 files changed, 1 insertions, 1 deletions
diff --git a/src/gui/kernel/qmacgesturerecognizer_mac.mm b/src/gui/kernel/qmacgesturerecognizer_mac.mm
index d842322a24..f142d71a0d 100644
--- a/src/gui/kernel/qmacgesturerecognizer_mac.mm
+++ b/src/gui/kernel/qmacgesturerecognizer_mac.mm
@@ -120,7 +120,7 @@ QMacPinchGestureRecognizer::recognize(QGesture *gesture, QObject *obj, QEvent *e
         case QNativeGestureEvent::Zoom:
             g->setLastScaleFactor(g->scaleFactor());
             g->setLastRotationAngle(g->rotationAngle());
-            g->setScaleFactor(g->scaleFactor() + ev->percentage);
+            g->setScaleFactor(g->scaleFactor() * (1 + ev->percentage));
             g->setChangeFlags(QPinchGesture::ScaleFactorChanged);
             g->setTotalChangeFlags(g->totalChangeFlags() | g->changeFlags());
             return QGestureRecognizer::TriggerGesture | QGestureRecognizer::ConsumeEventHint;