diff --git a/src/data.rs b/src/data.rs
index f490431..f0c4de3 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -354,6 +354,7 @@ impl BrainData {
             self.submit_updatevm_resp(grpc::UpdateVmResp {
                 uuid,
                 error: "Daemon is offline.".to_string(),
+                ovmf_hash: "".to_string(),
             })
             .await;
         }
diff --git a/src/grpc.rs b/src/grpc.rs
index 7db03e3..aa82a00 100644
--- a/src/grpc.rs
+++ b/src/grpc.rs
@@ -256,6 +256,7 @@ impl BrainDaemonService for BrainDaemonMock {
                     data.submit_updatevm_resp(UpdateVmResp {
                         error: "Daemon not connected.".to_string(),
                         uuid: updatevmreq.uuid,
+                        ovmf_hash: "".to_string(),
                     })
                     .await;
                     break;