diff --git a/common/tikzpreview.cpp b/common/tikzpreview.cpp
index e79c2cd..b17f514 100644
--- a/common/tikzpreview.cpp
+++ b/common/tikzpreview.cpp
@@ -405,7 +405,7 @@ void TikzPreview::setBackgroundColor(QColor color)
 void TikzPreview::wheelEvent(QWheelEvent *event)
 {
     if (event->modifiers() == Qt::ControlModifier) {
-        if (event->delta() > 0)
+        if (event->angleDelta().y() > 0)
             zoomIn();
         else
             zoomOut();