diff --git a/js/msp/MSPHelper.js b/js/msp/MSPHelper.js
index 7c649407..f29cb826 100644
--- a/js/msp/MSPHelper.js
+++ b/js/msp/MSPHelper.js
@@ -2924,7 +2924,7 @@ var mspHelper = (function (gui) {
         MSP.send_message(MSPCodes.MSP2_INAV_TIMER_OUTPUT_MODE, false, false, callback);
     }
 
-    self.sendTimerOutputModes = function(callback) {
+    self.sendTimerOutputModes = function(onCompleteCallback) {
         var nextFunction = send_next_output_mode;
         var idIndex = 0;
 
diff --git a/tabs/mixer.js b/tabs/mixer.js
index d0cbb368..7c687510 100644
--- a/tabs/mixer.js
+++ b/tabs/mixer.js
@@ -668,7 +668,7 @@ TABS.mixer.initialize = function (callback, scrollPosition) {
                 $('#platform-type').parent('.select').addClass('no-bottom-border');
             }
 
-            if (!updateEzTuneTabVisibility(false)) {
+            if (updateEzTuneTabVisibility(false)) {
                 EZ_TUNE.enabled = 0;
                 mspHelper.saveEzTune();
             }