diff --git a/rootfs/usr/local/etc/docker/init.d/zz-echoip.sh b/rootfs/usr/local/etc/docker/init.d/zz-echoip.sh
index 930d9d0..2488ae5 100755
--- a/rootfs/usr/local/etc/docker/init.d/zz-echoip.sh
+++ b/rootfs/usr/local/etc/docker/init.d/zz-echoip.sh
@@ -365,7 +365,7 @@ __run_start_script() {
           eval env -i HOME="$home" LC_CTYPE="$lc_type" PATH="$path" HOSTNAME="$sysname" USER="${SERVICE_USER:-$RUNAS_USER}" $extra_env sh -c "$cmd_exec" ||
           return 10
       else
-        su_cmd sh -c "$cmd_exec" || eval "$cmd_exec" || return 10
+        su_cmd "$cmd_exec" || eval "$cmd_exec" || return 10
       fi
     fi
   fi