diff --git a/app/lib/delay/index.d.ts b/app/lib/delay/index.d.ts
index 62d586e..e69de29 100644
--- a/app/lib/delay/index.d.ts
+++ b/app/lib/delay/index.d.ts
@@ -1,8 +0,0 @@
-/**
- * Delay in an async/await function
- *
- * @param {integer}  ms 	Milliseconds to delay for
- *
- * @returns {Promise} Promise to resolve after timeout
- **/
-declare function delay(ms: number): Promise<unknown>;
diff --git a/app/tsconfig.json b/app/tsconfig.json
index 0f7945c..593b696 100644
--- a/app/tsconfig.json
+++ b/app/tsconfig.json
@@ -4,6 +4,7 @@
         "esModuleInterop": true,
         "target": "ES2016",
         "noImplicitAny": true,
+        "declaration": false,
         "moduleResolution": "node",
         "sourceMap": true,
         "removeComments" : false,