diff --git a/apps/opencs/view/render/scenewidget.cpp b/apps/opencs/view/render/scenewidget.cpp
index b498fba061..d6f12b5298 100644
--- a/apps/opencs/view/render/scenewidget.cpp
+++ b/apps/opencs/view/render/scenewidget.cpp
@@ -235,7 +235,7 @@ namespace CSVRender
 
     void SceneWidget::mouseReleaseEvent (QMouseEvent *event)
     {
-        if (event->buttons() & Qt::LeftButton)
+        if (!(event->buttons() & Qt::LeftButton))
             mDragging = false;
     }