diff --git a/app/ecs/components/sprite.js b/app/ecs/components/sprite.js
index eab0559..944ff30 100644
--- a/app/ecs/components/sprite.js
+++ b/app/ecs/components/sprite.js
@@ -22,13 +22,14 @@ export default class Sprite extends Component {
         super.frame = this.frames ? frame % this.frames : 0;
       }
       get frames() {
-        return this.animation
-          ? (
-            this.$$sourceJson.animations
-              ? this.$$sourceJson.animations[this.animation].length
-              : 0
-          )
-          : 0;
+        if (
+          !this.animation
+          || !this.$$sourceJson.animations
+          || !(this.animation in this.$$sourceJson.animations)
+        ) {
+          return 0;
+        }
+        return this.$$sourceJson.animations[this.animation].length;
       }
       get scale() {
         return {x: this.scaleX, y: this.scaleY};