diff --git a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
index cf2b64ddc..861938638 100644
--- a/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
+++ b/packages/node_modules/@node-red/editor-client/src/js/ui/view.js
@@ -3001,8 +3001,8 @@ RED.view = (function() {
         var boundingWidth = maxX - minX;
         var boundingHeight = maxY - minY;
 
-        // Get viewport dimensions
-        var viewportWidth = chart.width();
+        // Get viewport dimensions - accounting for the sidebar if visible
+        var viewportWidth = chart.width() - $("#red-ui-sidebar").width();
         var viewportHeight = chart.height();
 
         // Calculate zoom level that fits bounding box in viewport