diff --git a/OHIFViewer-react/src/FlexboxLayout/ViewerMain.js b/OHIFViewer-react/src/FlexboxLayout/ViewerMain.js
index 080c287eb..b4cd486f1 100644
--- a/OHIFViewer-react/src/FlexboxLayout/ViewerMain.js
+++ b/OHIFViewer-react/src/FlexboxLayout/ViewerMain.js
@@ -3,12 +3,16 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import cornerstone from 'cornerstone-core';
 import cornerstoneTools from 'cornerstone-tools';
+import cornerstoneMath from "cornerstone-math";
 import { OHIF } from 'ohif-core';
 import ConnectedCornerstoneViewport from './ConnectedCornerstoneViewport.js';
 import ConnectedLayoutManager from './ConnectedLayoutManager.js';
 import StackManager from '../lib/StackManager.js';
 import './ViewerMain.css';
 
+// Attempt to fix weird undefined dep issue
+cornerstoneTools.external.cornerstoneMath = cornerstoneMath;
+
 //const { StudyLoadingListener, StudyPrefetcher, ResizeViewportManager } = OHIF.classes;
 
 
diff --git a/OHIFViewer-react/src/config.js b/OHIFViewer-react/src/config.js
index 2db2f403c..a0ce78e49 100644
--- a/OHIFViewer-react/src/config.js
+++ b/OHIFViewer-react/src/config.js
@@ -9,6 +9,8 @@ import sha from './sha.js';
 import version from './version.js';
 import { homepage } from '../package.json';
 
+console.warn('cornerstoneMath');
+console.warn(cornerstoneMath)
 window.info = {
     sha,
     version,