diff --git a/containers/libreportal/frontend/js/components/config/config-shared.js b/containers/libreportal/frontend/js/components/config/config-shared.js
index 6dd6421..f91ed95 100755
--- a/containers/libreportal/frontend/js/components/config/config-shared.js
+++ b/containers/libreportal/frontend/js/components/config/config-shared.js
@@ -661,6 +661,13 @@ class ConfigShared {
           <span class="input-group-text">${unitLabel}</span>
         </div>
       `;
+    } else if (key === 'CFG_BACKUP_VERIFY_DATA_PERCENT') {
+      fieldHTML += `
+        <div class="input-group">
+          <input type="number" id="${fieldId}" name="${key}" value="${value}" class="form-control" min="1" max="100" placeholder="5">
+          <span class="input-group-text">%</span>
+        </div>
+      `;
     } else if (key === 'CFG_UPDATER_CHECK') {
       fieldHTML += `
         <div class="input-group">