diff --git a/templates/server/index.ts.hbs b/templates/server/index.ts.hbs
index 4388333..36234fb 100644
--- a/templates/server/index.ts.hbs
+++ b/templates/server/index.ts.hbs
@@ -1,5 +1,5 @@
 {{#if isDurableObject}}
-  {{addImport "import {createMergeableStore} from 'tinybase';"}}
+  {{addImport "import {createMergeableStore, IdAddedOrRemoved} from 'tinybase';"}}
   {{addImport "import {createDurableObjectSqlStoragePersister} from 'tinybase/persisters/persister-durable-object-sql-storage';"}}
   {{addImport "import {getWsServerDurableObjectFetch, WsServerDurableObject} from 'tinybase/synchronizers/synchronizer-ws-server-durable-object';"}}
 
@@ -40,4 +40,4 @@
   });
 
   console.log(`WebSocket server running on ws://localhost:${PORT}`);
-{{/if}}
\ No newline at end of file
+{{/if}}