diff --git a/backend/src/event/Event.ts b/backend/src/event/Event.ts
index 786d48eed..77e86ad46 100644
--- a/backend/src/event/Event.ts
+++ b/backend/src/event/Event.ts
@@ -67,6 +67,7 @@ export class EventTransactionReceiveRedeem extends EventBasicTxX {}
 export class EventContributionCreate extends EventBasicCt {}
 export class EventAdminContributionCreate extends EventBasicCt {}
 export class EventAdminContributionDelete extends EventBasicCt {}
+export class EventAdminContributionDeny extends EventBasicCt {}
 export class EventAdminContributionUpdate extends EventBasicCt {}
 export class EventUserCreateContributionMessage extends EventBasicCtMsg {}
 export class EventAdminCreateContributionMessage extends EventBasicCtMsg {}
diff --git a/backend/src/event/EventProtocolType.ts b/backend/src/event/EventProtocolType.ts
index b7c2f0151..ccd15d238 100644
--- a/backend/src/event/EventProtocolType.ts
+++ b/backend/src/event/EventProtocolType.ts
@@ -35,6 +35,7 @@ export enum EventProtocolType {
   CONTRIBUTION_UPDATE = 'CONTRIBUTION_UPDATE',
   ADMIN_CONTRIBUTION_CREATE = 'ADMIN_CONTRIBUTION_CREATE',
   ADMIN_CONTRIBUTION_DELETE = 'ADMIN_CONTRIBUTION_DELETE',
+  ADMIN_CONTRIBUTION_DENY = 'ADMIN_CONTRIBUTION_DENY',
   ADMIN_CONTRIBUTION_UPDATE = 'ADMIN_CONTRIBUTION_UPDATE',
   USER_CREATE_CONTRIBUTION_MESSAGE = 'USER_CREATE_CONTRIBUTION_MESSAGE',
   ADMIN_CREATE_CONTRIBUTION_MESSAGE = 'ADMIN_CREATE_CONTRIBUTION_MESSAGE',