diff --git a/.changeset/fix-settimeout-binding.md b/.changeset/fix-settimeout-binding.md
new file mode 100644
index 000000000..40f78abc3
--- /dev/null
+++ b/.changeset/fix-settimeout-binding.md
@@ -0,0 +1,5 @@
+---
+'@pgflow/client': patch
+---
+
+Fix setTimeout context binding issue in SupabaseBroadcastAdapter for browser compatibility
diff --git a/pkgs/client/src/lib/SupabaseBroadcastAdapter.ts b/pkgs/client/src/lib/SupabaseBroadcastAdapter.ts
index 711a586f4..73bfc94ae 100644
--- a/pkgs/client/src/lib/SupabaseBroadcastAdapter.ts
+++ b/pkgs/client/src/lib/SupabaseBroadcastAdapter.ts
@@ -42,7 +42,7 @@ export class SupabaseBroadcastAdapter implements IFlowRealtime {
     this.#supabase = supabase;
     this.#reconnectionDelay = opts.reconnectDelayMs ?? 2000;
     this.#stabilizationDelay = opts.stabilizationDelayMs ?? 300;
-    this.#schedule = opts.schedule ?? setTimeout;
+    this.#schedule = opts.schedule ?? setTimeout.bind(globalThis);
   }
   
   /**