diff --git a/ophyd_devices/utils/bec_roi_signals/ad_roi_signal.py b/ophyd_devices/utils/bec_roi_signals/ad_roi_signal.py
index 3b86309..7f2a3e3 100644
--- a/ophyd_devices/utils/bec_roi_signals/ad_roi_signal.py
+++ b/ophyd_devices/utils/bec_roi_signals/ad_roi_signal.py
@@ -407,3 +407,9 @@ class MyDetector(PSIDeviceBase, ADBase):
                 logger.error(
                     f"Error while polling array data for preview of {self.name}: {content}"
                 )
+
+    def destroy(self):
+        """Clean up resources."""
+        self._poll_thread_kill_event.set()
+        if self._poll_thread.is_alive():
+            self._poll_thread.join(timeout=0.5)