diff --git a/scripts/pi-hole/js/index.js b/scripts/pi-hole/js/index.js
index cc013a34..b2e2cb29 100644
--- a/scripts/pi-hole/js/index.js
+++ b/scripts/pi-hole/js/index.js
@@ -5,7 +5,7 @@
  *  This file is copyright under the latest version of the EUPL.
  *  Please see LICENSE file for your rights under this license. */
 
-/* global utils:false, Chart:false, apiFailure:false, THEME_COLORS:false, customTooltips:false, htmlLegendPlugin:false,doughnutTooltip:false */
+/* global utils:false, Chart:false, apiFailure:false, THEME_COLORS:false, customTooltips:false, htmlLegendPlugin:false,doughnutTooltip:false, ChartDeferred:false */
 
 // Define global variables
 var timeLineChart, clientsChart;
diff --git a/scripts/pi-hole/js/settings-system.js b/scripts/pi-hole/js/settings-system.js
index 417c137a..307ea3a3 100644
--- a/scripts/pi-hole/js/settings-system.js
+++ b/scripts/pi-hole/js/settings-system.js
@@ -5,7 +5,7 @@
  *  This file is copyright under the latest version of the EUPL.
  *  Please see LICENSE file for your rights under this license. */
 
-/* global apiFailure:false, Chart:false, THEME_COLORS:false, customTooltips:false, htmlLegendPlugin:false,doughnutTooltip:false */
+/* global apiFailure:false, Chart:false, THEME_COLORS:false, customTooltips:false, htmlLegendPlugin:false,doughnutTooltip:false, ChartDeferred:false */
 
 var hostinfoTimer = null;
 var cachePieChart = null;