diff --git a/monkey_island/deb-package/DEBIAN/postinst b/monkey_island/deb-package/DEBIAN/postinst
index cd65ce8d9..1476d1d2c 100644
--- a/monkey_island/deb-package/DEBIAN/postinst
+++ b/monkey_island/deb-package/DEBIAN/postinst
@@ -12,7 +12,7 @@ rm -f $MONKEY_FOLDER/pip_requirements.txt
 
 mv $MONKEY_FOLDER/ubuntu/* /etc/init/
 
-./create_certificate.sh
+/var/monkey_island/create_certificate.sh
 
 service monkey-island start
 service monkey-mongo start