diff --git a/cmd/metal-api/internal/grpc/boot-service_test.go b/cmd/metal-api/internal/grpc/boot-service_test.go
index 147a249d..2055eb46 100644
--- a/cmd/metal-api/internal/grpc/boot-service_test.go
+++ b/cmd/metal-api/internal/grpc/boot-service_test.go
@@ -119,7 +119,8 @@ func TestBootService_Register(t *testing.T) {
 			testdata.InitMockDBData(mock)
 
 			req := &v1.BootServiceRegisterRequest{
-				Uuid: tt.uuid,
+				Uuid:        tt.uuid,
+				PartitionId: "1",
 				Hardware: &v1.MachineHardware{
 					Memory: tt.memory,
 					Disks: []*v1.MachineBlockDevice{