diff --git a/src/app/authentication.interceptor.ts b/src/app/authentication.interceptor.ts
index 98b085c4e707d897c6b32d2cb3f06816f5406067..071cba6ae663016ab49bd4fcf16ead90792b2df7 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 {