diff --git a/core/framework/tui/app.py b/core/framework/tui/app.py
index 418883770b..53f45b47d0 100644
--- a/core/framework/tui/app.py
+++ b/core/framework/tui/app.py
@@ -845,7 +845,7 @@ def _show_build_edit_message(self) -> None:
         # Re-show picker so user can still select an agent
         self._show_agent_picker_initial()
 
-    def action_show_agent_picker(self) -> None:
+    async def action_show_agent_picker(self) -> None:
         """Open the agent picker (Ctrl+A or /agents)."""
         from framework.tui.screens.agent_picker import AgentPickerScreen, discover_agents