diff --git a/uninstall_agent.sh b/uninstall_agent.sh
index 2fa1a41a5d034597a7b8a8094aae62988e08d840..d919659913f2f6dcd2e04573f5b7758427f52abf 100755
--- a/uninstall_agent.sh
+++ b/uninstall_agent.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
 
-crontab -l | grep -v '@reboot  /opt/agentC3SL/agent-v*' | crontab -
+
+sed -i 's=\@reboot\  \/opt\/agentC3SL\/agent-v\*==g' /var/spool/cron/crontabs/root
 /opt/agentC3SL/agent-* --uninstall