diff --git a/internal/server/grpc_router.go b/internal/server/grpc_router.go
index 359f0c86944f99dd0a5cf0b8d0615939d9fa65c0..8cebb63afed4d0d1d217e4b313d19d815c637bef 100644
--- a/internal/server/grpc_router.go
+++ b/internal/server/grpc_router.go
@@ -60,6 +60,7 @@ func (s *collaborationRouter) FindVorgang(ctx context.Context, in *pb.GrpcFindVo
 }
 
 func (s *collaborationRouter) handleRequest(ctx context.Context, handler func(pb.CollaborationServiceClient, context.Context) (interface{}, error)) (interface{}, error) {
+	logger.Info(fmt.Sprintf("setting grpc headers %s: %s", keyClientName, clientName))
 	ctx = metadata.AppendToOutgoingContext(ctx, keyClientName, clientName)
 	md, ok := metadata.FromIncomingContext(ctx)
 	if !ok {