diff --git a/frontend/frontend.js b/frontend/frontend.js
index 44fe0e7..57b5ee3 100644
--- a/frontend/frontend.js
+++ b/frontend/frontend.js
@@ -26,15 +26,20 @@ function fillTable (obj, dom) {
   }
 }
 
-function graphSpectralData(obj, dom) {
+function graphSpectralData (obj, dom) {
   // graphs the data from obj[0] into canvas at dom
+  var arr;
+  for (var i in ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'R', 'I', 'S', 'J', 'T', 'U', 'V', 'W', 'K', 'L']) {
+    arr.push(obj[i]);
+  }
+
   var chart = new Chart(dom, {
     type: 'line',
     data: {
-      labels: Object.keys(obj[0]),
+      labels: ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'R', 'I', 'S', 'J', 'T', 'U', 'V', 'W', 'K', 'L'],
       datasets: [{
         label: 'Spectrometer data',
-        data: Object.values(obj[0])
+        data: arr
       }]
     },
     options: {