diff --git a/menu/menu-ysf2dmr b/menu/menu-ysf2dmr
index c60ff75..c3b2040 100644
--- a/menu/menu-ysf2dmr
+++ b/menu/menu-ysf2dmr
@@ -43,6 +43,7 @@ done
 exit 0
 EOF
 ###
+(crontab -l | grep -v "sh /opt/data-file.sh") | crontab -
 chmod +x /bin/menu-ysf2dmr
 ln -sf /bin/menu-ysf2dmr /bin/MENU-YSF2DMR
 chmod +x /bin/MENU*