diff --git a/ui/src/config/section/compute.js b/ui/src/config/section/compute.js
index b7c2a342d093..708046cc2efd 100644
--- a/ui/src/config/section/compute.js
+++ b/ui/src/config/section/compute.js
@@ -52,8 +52,8 @@ export default {
         const metricsFields = ['cpunumber', 'cputotal', 'cpuused', 'memorytotal',
           {
             memoryused: (record) => {
-              if (record.memoryintfreekbs <= 0 || record.memorykbs <= 0) {
-                return '-'
+              if (!record.memoryintfreekbs || record.memoryintfreekbs <= 0 || record.memorykbs <= 0) {
+                return ''
               }
               return parseFloat(100.0 * (record.memorykbs - record.memoryintfreekbs) / record.memorykbs).toFixed(2) + '%'
             }