diff --git a/types/scrollreveal/index.d.ts b/types/scrollreveal/index.d.ts
index 2dee7833f6..f6b573fafe 100644
--- a/types/scrollreveal/index.d.ts
+++ b/types/scrollreveal/index.d.ts
@@ -28,6 +28,7 @@ declare namespace scrollReveal {
         distance ? : string;
         duration ? : number;
         delay ? : number;
+        interval ? : number;
         rotate ? : ScrollRevealRotateObject;
         opacity ? : number;
         scale ? : number;