diff --git a/web/app/assets/javascripts/session.js b/web/app/assets/javascripts/session.js
index 25a5e0915..b77a45831 100644
--- a/web/app/assets/javascripts/session.js
+++ b/web/app/assets/javascripts/session.js
@@ -1147,8 +1147,8 @@
             // volumes on trackVolumeObject, and call SetControlState to stick.
             var sliderValue = percentToMixerValue(
                 currentMixerRangeMin, currentMixerRangeMax, volumePercent);
-            context.trackVolumeObject.volL = sliderValue;
-            context.trackVolumeObject.volR = sliderValue;
+            context.trackVolumeObject.volL = context.JK.FaderHelpers.convertPercentToAudioTaper(volumePercent);
+            context.trackVolumeObject.volR = context.JK.FaderHelpers.convertPercentToAudioTaper(volumePercent);
             // Special case for L2M mix:
             if (mixerId === '__L2M__') {
                 logger.debug("L2M volumePercent=" + volumePercent);