diff --git a/src/api/authentication.ts b/src/api/authentication.ts
index bbbd32cd..822f10b4 100644
--- a/src/api/authentication.ts
+++ b/src/api/authentication.ts
@@ -4,7 +4,7 @@ import { getConfig } from '../config/config';
 import { uint8ArrayToHex } from '../utils/utils';
 
 const authenticateKey = (req: Request, res: Response, next: NextFunction) => {
-  const api_key: string = req.header('API_KEY')!;
+  const api_key: string = req.header('Api-Key')!;
   if (
     api_key &&
     uint8ArrayToHex(blake2b(api_key, undefined, 32)) ==
@@ -12,7 +12,7 @@ const authenticateKey = (req: Request, res: Response, next: NextFunction) => {
   ) {
     next();
   } else {
-    res.status(403).send({ message: "API_KEY doesn't exist or it is wrong" });
+    res.status(403).send({ message: "Api-Key doesn't exist or it is wrong" });
   }
 };