diff --git a/common/src/services/sync.service.ts b/common/src/services/sync.service.ts
index cc512e501c..93611238bc 100644
--- a/common/src/services/sync.service.ts
+++ b/common/src/services/sync.service.ts
@@ -13,6 +13,7 @@ import { SendService } from "../abstractions/send.service";
 import { SettingsService } from "../abstractions/settings.service";
 import { StateService } from "../abstractions/state.service";
 import { SyncService as SyncServiceAbstraction } from "../abstractions/sync.service";
+import { sequentialize } from "../misc/sequentialize";
 import { CipherData } from "../models/data/cipherData";
 import { CollectionData } from "../models/data/collectionData";
 import { FolderData } from "../models/data/folderData";
@@ -71,6 +72,7 @@ export class SyncService implements SyncServiceAbstraction {
     await this.stateService.setLastSync(date.toJSON(), { userId: userId });
   }
 
+  @sequentialize(() => "fullSync")
   async fullSync(forceSync: boolean, allowThrowOnError = false): Promise<boolean> {
     this.syncStarted();
     const isAuthenticated = await this.stateService.getIsAuthenticated();