diff --git a/Makefile b/Makefile
index 01d32c3..df278a4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 SPK_NAME = rr-manager
 SPK_VERS = 2.0
-SPK_REV = 39
+SPK_REV = 40
 SPK_ICON = src/rr-manager.png
 
 DSM_UI_DIR = ui
diff --git a/src/service-setup.sh b/src/service-setup.sh
index 9cde08a..25fdfee 100644
--- a/src/service-setup.sh
+++ b/src/service-setup.sh
@@ -49,4 +49,11 @@ service_postupgrade ()
     touch /tmp/rr_manager_installed
     rm -fr ${TMP_DIR}/${PACKAGE}
     exit 0
+}
+
+service_postuninst ()
+{
+    echo "DELETE FROM task WHERE task_name='RunRrUpdate'" | sqlite3 /usr/syno/etc/esynoscheduler/esynoscheduler.db
+    echo "DELETE FROM task WHERE task_name='ApplyRRConfig'" | sqlite3 /usr/syno/etc/esynoscheduler/esynoscheduler.db
+    exit 0
 }
\ No newline at end of file