diff --git a/src/app/authentication.interceptor.ts b/src/app/authentication.interceptor.ts
index bdde6f740035a19ec6839448bac4c34091361ccb..57b5abb586a5667cf0dc23dfd536193d842e3d5b 100644
--- a/src/app/authentication.interceptor.ts
+++ b/src/app/authentication.interceptor.ts
@@ -8,8 +8,6 @@ import { Observable } from 'rxjs/Observable';
 
 const AUTH_HEADER_KEY = 'Arsnova-Auth-Token';
 
-const AUTH_HEADER_KEY = 'Arsnova-Auth-Token';
-
 @Injectable()
 export class AuthenticationInterceptor implements HttpInterceptor {