diff --git a/src/util.mjs b/src/util.mjs
index 18bbdaec..7f2bd2ce 100644
--- a/src/util.mjs
+++ b/src/util.mjs
@@ -37,11 +37,10 @@ util.getEyeFeats = function(eyes) {
         this.equalizeHistogram(gray, 5, hist);
         return hist;
     };
-
-    if (webgazer.params.trackEye == 'left') {
+    if (params.trackEye == 'left') {
         return process(eyes.left);
     }
-    else if (webgazer.params.trackEye == 'right') {
+    else if (params.trackEye == 'right') {
         return process(eyes.right);
     }
     else {