diff --git a/ui/src/app/components/options/options.component.ts b/ui/src/app/components/options/options.component.ts
index f13732d..bd45532 100644
--- a/ui/src/app/components/options/options.component.ts
+++ b/ui/src/app/components/options/options.component.ts
@@ -88,7 +88,7 @@ interface SliderOption extends BaseOptions {
   midle?: number
   max?: number
   animationDuration?: number
-  animationFps: number
+  animationFps?: number
   scrollEnabled?: number
   stickToMiddle?: boolean
   stickedToMiddle?: () => any