diff --git a/js/src/grpc-client.ts b/js/src/grpc-client.ts
index e404c75..eaa4d69 100644
--- a/js/src/grpc-client.ts
+++ b/js/src/grpc-client.ts
@@ -134,9 +134,8 @@ export class DateiLagerGrpcClient {
     } catch (error) {
       if (error instanceof RpcError && error.code == "ALREADY_EXISTS") {
         throw new ProjectAlreadyExistsError(`project id ${project} already exists`);
-      } else {
-        throw error;
       }
+      throw error;
     }
   }
 
diff --git a/js/src/utils/errors.ts b/js/src/utils/errors.ts
index 5ce1f10..94bc9e8 100644
--- a/js/src/utils/errors.ts
+++ b/js/src/utils/errors.ts
@@ -1,5 +1 @@
-export class ProjectAlreadyExistsError extends Error {
-  constructor(msg: string) {
-    super(msg);
-  }
-}
+export class ProjectAlreadyExistsError extends Error {}