diff --git a/storage/volumes.md b/storage/volumes.md
index ac0cde58f3..0262952b09 100644
--- a/storage/volumes.md
+++ b/storage/volumes.md
@@ -90,7 +90,7 @@ If you need to specify volume driver options, you must use `--mount`.
 > list in the `o` parameter. This example shows the correct way to escape the list.
 >
 >     $ docker service create \
->          --mount 'type=volume,src=<VOLUME-NAME>,dst=<CONTAINER-PATH>,volume-driver=local,volume-opt=type=nfs,volume-opt=device=<nfs-server>:<nfs-path>,"volume-opt=o=addr=<nfs-address>,vers=4,soft,timeo=180,bg,tcp,rw"'
+>         --mount 'type=volume,src=<VOLUME-NAME>,dst=<CONTAINER-PATH>,volume-driver=local,volume-opt=type=nfs,volume-opt=device=<nfs-server>:<nfs-path>,"volume-opt=o=addr=<nfs-address>,vers=4,soft,timeo=180,bg,tcp,rw"'
 >         --name myservice \
 >         <IMAGE>
 > {: .warning}