diff --git a/bindings/javascript/sync/packages/common/types.ts b/bindings/javascript/sync/packages/common/types.ts
index 49b140103..27006de8d 100644
--- a/bindings/javascript/sync/packages/common/types.ts
+++ b/bindings/javascript/sync/packages/common/types.ts
@@ -36,6 +36,7 @@ export interface SyncOpts {
     encryptionKey?: string;
     tablesIgnore?: string[],
     transform?: Transform,
+    longPollTimeoutMs?: number,
     tracing?: string,
 }
 
diff --git a/bindings/javascript/sync/packages/native/index.d.ts b/bindings/javascript/sync/packages/native/index.d.ts
index 4ff3c2f91..02ff2c385 100644
--- a/bindings/javascript/sync/packages/native/index.d.ts
+++ b/bindings/javascript/sync/packages/native/index.d.ts
@@ -228,6 +228,7 @@ export interface SyncEngineOpts {
   path: string
   clientName?: string
   walPullBatchSize?: number
+  longPollTimeoutMs?: number
   tracing?: string
   tablesIgnore?: Array<string>
   useTransform: boolean
diff --git a/bindings/javascript/sync/packages/native/promise.ts b/bindings/javascript/sync/packages/native/promise.ts
index 3d473c8a9..2bff31d29 100644
--- a/bindings/javascript/sync/packages/native/promise.ts
+++ b/bindings/javascript/sync/packages/native/promise.ts
@@ -83,7 +83,8 @@ async function connect(opts: SyncOpts): Promise<Database> {
         tablesIgnore: opts.tablesIgnore,
         useTransform: opts.transform != null,
         tracing: opts.tracing,
-        protocolVersion: 1
+        longPollTimeoutMs: opts.longPollTimeoutMs,
+        protocolVersion: 1,
     });
     const runOpts: RunOpts = {
         url: opts.url,