diff --git a/debian/coturn.service b/debian/coturn.service
index 218d65de..0c24fe25 100644
--- a/debian/coturn.service
+++ b/debian/coturn.service
@@ -11,7 +11,7 @@ RuntimeDirectory=turnserver
 PIDFile=/run/turnserver/turnserver.pid
 ExecStart=/usr/bin/turnserver --daemon -c /etc/turnserver.conf --pidfile /run/turnserver/turnserver.pid
 #FixMe: turnserver exit faster than it is finshing the setup and ready for handling the connection.
-ExecStartPost=sleep 2
+ExecStartPost=/bin/sleep 2
 Restart=on-failure
 InaccessibleDirectories=/home
 PrivateTmp=yes