diff --git a/src/agent/routine_engine.rs b/src/agent/routine_engine.rs
index 16671239..2a5f4474 100644
--- a/src/agent/routine_engine.rs
+++ b/src/agent/routine_engine.rs
@@ -792,6 +792,7 @@ impl RoutineEngine {
             notify_tx: self.notify_tx.clone(),
             running_count: self.running_count.clone(),
             scheduler: self.scheduler.clone(),
+            extension_manager: self.extension_manager.clone(),
             tools: self.tools.clone(),
             safety: self.safety.clone(),
             sandbox_readiness: self.sandbox_readiness,