diff --git a/extensions/system-monitor/extension.js b/extensions/system-monitor/extension.js
index 37d2eb18..1a8060d7 100644
--- a/extensions/system-monitor/extension.js
+++ b/extensions/system-monitor/extension.js
@@ -361,6 +361,7 @@ class Indicator extends PanelMenu.Button {
     }
 
     constructor(settings) {
+        GTop.glibtop_init();
         super(0.5, _('System stats'));
 
         this._settings = settings;