1 files changed, 3 insertions, 0 deletions

diff --git a/js/panels/Timeline/Span.reel/Span.js b/js/panels/Timeline/Span.reel/Span.js
index 5b0f3f94..59cd13ed 100644
--- a/js/panels/Timeline/Span.reel/Span.js
+++ b/js/panels/Timeline/Span.reel/Span.js
@@ -67,6 +67,9 @@ var Span = exports.Span = Montage.create(Component, {
         },
         set: function(newVal) {
                 if (newVal !== this._easing) {
+                        if (typeof(newVal) === "undefined") {
+                                newVal = "ease-in";
+                        }
                         this._easing = newVal;
                         this.parentComponent.setKeyframeEase(newVal);
                         this.needsDraw = true;