diff --git a/cpufreq-service b/cpufreq-service
index 2495084..7e188ef 100755
--- a/cpufreq-service
+++ b/cpufreq-service
@@ -267,7 +267,7 @@ var CpufreqService = new Lang.Class ({
             if (!success) return;
             try {
                 contents = Convenience.byteArrayToString (contents).toString ().split ("\n")[0].split (" ")[0].trim ();
-                loading = Math.round (parseFloat (freqInfo[0]) * 100);
+                loading = Math.round (parseFloat (contents) * 100);
             } catch (e) {}
         });
     },
diff --git a/prefs.js b/prefs.js
index 161569b..010432e 100644
--- a/prefs.js
+++ b/prefs.js
@@ -146,7 +146,7 @@ var PageGeneralCPUFreq = new Lang.Class({
         this.pack_start (hbox, false, false, 0);
         hbox.pack_start (new Gtk.Label ({label: _("Show"), xalign:0.0}), false, false, 0);
 
-        cb_units = Gtk.CheckButton.new_with_label (_("Frequency"));
+        let cb_units = Gtk.CheckButton.new_with_label (_("Frequency"));
         cb_units.tooltip_text = _("Monitor frequency");
         cb_units.margin_left = 32;
         cb_units.active = frequency_show;