diff --git a/bigbluebutton-html5/imports/ui/components/video-provider/component.jsx b/bigbluebutton-html5/imports/ui/components/video-provider/component.jsx
index 8fe16923a5a8436c8d1dab76425487774b19e949..90c41cd5b4add345b07c33c620e3ec70febdf30e 100755
--- a/bigbluebutton-html5/imports/ui/components/video-provider/component.jsx
+++ b/bigbluebutton-html5/imports/ui/components/video-provider/component.jsx
@@ -490,7 +490,7 @@ class VideoProvider extends Component {
     const isCurrent = id === this.props.userId;
     const peer = this.webRtcPeers[id];
 
-    const attachVideoStream = () => {
+    const attachVideoStreamHelper = () => {
       const stream = isCurrent ? peer.getLocalStream() : peer.getRemoteStream();
       video.pause();
       video.srcObject = stream;
@@ -503,7 +503,7 @@ class VideoProvider extends Component {
     // If peer has started playing attach to tag, otherwise wait a while
     if (peer) {
       if (peer.started) {
-        attachVideoStream();
+        attachVideoStreamHelper();
       }
 
       // So we can start it later when we get a playStart
diff --git a/bigbluebutton-html5/imports/utils/visibilityEvent.js b/bigbluebutton-html5/imports/utils/visibilityEvent.js
index 52c01c3e9b24c06957bf85bbc9d767ae236a6778..a628d4bfe7e51b868549bfbeae880bd792bed1ea 100644
--- a/bigbluebutton-html5/imports/utils/visibilityEvent.js
+++ b/bigbluebutton-html5/imports/utils/visibilityEvent.js
@@ -15,18 +15,18 @@ export default class VisibilityEvent {
     this._onHiddenTimeout = null;
   }
 
-  onVisible (f) {
+  onVisible (onVisibleCallback) {
     this._onVisible = () => {
       if (!this._isHidden()) {
-        f();
+        onVisibleCallback();
       }
     };
   }
 
-  onHidden(f) {
+  onHidden(onHiddenCallback) {
     this._onHidden = () => {
       if (this._isHidden()) {
-        f();
+        onHiddenCallback();
         this._onHiddenTimeout = null;
       }
     };