diff --git a/src/containers/stage.jsx b/src/containers/stage.jsx
index efe244153c6934c9f50b615b321a90d46130261a..c34aa4d5ff3ec494df9902d9555478bc39b62679 100644
--- a/src/containers/stage.jsx
+++ b/src/containers/stage.jsx
@@ -179,7 +179,7 @@ class Stage extends React.Component {
         this.updateRect();
         const {x, y} = getEventXY(e);
         const mousePosition = [x - this.rect.left, y - this.rect.top];
-        if (e.which === 1) {
+        if (true) {
             this.setState({
                 mouseDown: true,
                 mouseDownPosition: mousePosition,