diff --git a/guiTools/spiri_sdk_guitools/sim_drone.py b/guiTools/spiri_sdk_guitools/sim_drone.py
index 3cc29b9..23584dd 100644
--- a/guiTools/spiri_sdk_guitools/sim_drone.py
+++ b/guiTools/spiri_sdk_guitools/sim_drone.py
@@ -141,7 +141,7 @@ class Robot:
             with self.robot_ui:
                 ui.label(f"{self.robot_type} {self.sysid}").classes("text-2xl")
                 ui.label(f"""Sysid: {self.sysid}""")
-                ui.button("Start", on_click=self.start).classes("m-2")
+                ui.button("Start", on_click=self.async_start).classes("m-2")
                 ui.button("Stop", on_click=self.async_stop).classes("m-2")
                 self.video_button = EnableStreamingButton(sysid=self.sysid).classes(
                     "m-2"
@@ -187,6 +187,9 @@ class Robot:
             all=True, filters={"name": f"robot-sim-{self.robot_type}-{self.sysid}"}
         )
 
+    async def async_start(self):
+        return await run.io_bound(self.start)
+
     def start(self):
         """Starts the simulated drone with a given sysid,
         each drone must have it's own unique ID.