diff --git a/src/empty/Network.js b/src/empty/Network.tsx
similarity index 97%
rename from src/empty/Network.js
rename to src/empty/Network.tsx
index a4a3bc0db..ab821b25c 100644
--- a/src/empty/Network.js
+++ b/src/empty/Network.tsx
@@ -1,9 +1,9 @@
-const renderStop = (color, offset, opacity) => (
+const renderStop = (color: string, offset: number, opacity?: number) => (
);
export const Network = (
-