diff --git a/ui/src/react-app-env.d.ts b/ui/src/react-app-env.d.ts
index 951101ce9..9d458eeb0 100644
--- a/ui/src/react-app-env.d.ts
+++ b/ui/src/react-app-env.d.ts
@@ -9,5 +9,3 @@ declare module "favico.js";
 declare module "react-json-pretty/dist/monikai";
 
 declare module "react-linkify";
-
-declare module "diffable-html";