diff --git a/web/client/plugins/longitudinalProfile/Dock.jsx b/web/client/plugins/longitudinalProfile/Dock.jsx
index 661fb05692..8e93f5b6cf 100644
--- a/web/client/plugins/longitudinalProfile/Dock.jsx
+++ b/web/client/plugins/longitudinalProfile/Dock.jsx
@@ -196,7 +196,7 @@ const ChartData = ({
                         bsStyle="primary"
                         disabled={isTainted}
                         onClick={() => {
-                            toPng(document.querySelector('canvas.ol-unselectable'))
+                            toPng(document.querySelector('.ol-unselectable canvas'))
                                 .then(function(dataUrlMap) {
                                     generateChartImageUrl()
                                         .then((dataUrlChart) => {