diff --git a/src/js/control-bar/progress-control/mouse-time-display.js b/src/js/control-bar/progress-control/mouse-time-display.js
index 04b155ec42..fe88c558c2 100644
--- a/src/js/control-bar/progress-control/mouse-time-display.js
+++ b/src/js/control-bar/progress-control/mouse-time-display.js
@@ -26,7 +26,7 @@ class MouseTimeDisplay extends SeekBar {
       this.on(player.controlBar.progressControl.el(), 'mousemove', throttle(Fn.bind(this, this.handleMouseMove), 50));
     });
 
-    this.bar_ = this.el().querySelector('.vjs-mouse-display-bar')
+    this.bar_ = this.el().querySelector('.vjs-mouse-display-bar');
     this.bar = {
       el: () => this.bar_
     };
@@ -61,7 +61,6 @@ class MouseTimeDisplay extends SeekBar {
   }
 
   updateDataAttr() {
-    //this.mouseDisplayBar.updateDataAttr(formatTime(this.newTime, this.player_.duration()));
     let time = formatTime(this.newTime, this.player_.duration());
     this.bar && this.bar.el().setAttribute('data-current-time', time);
   }
diff --git a/src/js/control-bar/progress-control/seek-bar.js b/src/js/control-bar/progress-control/seek-bar.js
index c2de9ffd11..03ad9a91e7 100644
--- a/src/js/control-bar/progress-control/seek-bar.js
+++ b/src/js/control-bar/progress-control/seek-bar.js
@@ -35,7 +35,7 @@ class SeekBar extends Slider {
     props = assign({
       'aria-label': 'video progress bar'
     }, props);
-    props.className = 'vjs-progress-holder' + (props.className ? ' ' + props.className : ''),
+    props.className = 'vjs-progress-holder' + (props.className ? ' ' + props.className : '');
     return super.createEl(type, props);
   }