1 files changed, 2 insertions, 2 deletions
diff --git a/packages/demobank-ui/src/pages/OperationState/index.ts b/packages/demobank-ui/src/pages/OperationState/index.ts
index 120fd7b45..0776bbed5 100644
--- a/packages/demobank-ui/src/pages/OperationState/index.ts
+++ b/packages/demobank-ui/src/pages/OperationState/index.ts
@@ -83,8 +83,8 @@ export namespace State {
   }
   export interface NeedConfirmation {
     status: "need-confirmation",
-    onAbort: () => Promise<TalerCoreBankErrorsByMethod<"abortWithdrawalById"> | undefined>;
-    onConfirm: () => Promise<TalerCoreBankErrorsByMethod<"confirmWithdrawalById"> | undefined>;
+    onAbort: undefined | (() => Promise<TalerCoreBankErrorsByMethod<"abortWithdrawalById"> | undefined>);
+    onConfirm: undefined | (() => Promise<TalerCoreBankErrorsByMethod<"confirmWithdrawalById"> | undefined>);
     error: undefined;
     busy: boolean,
   }