diff --git a/doc/manual/development.xml b/doc/manual/development.xml
index b661e44b082..4ae2ba03896 100644
--- a/doc/manual/development.xml
+++ b/doc/manual/development.xml
@@ -423,7 +423,7 @@ $ qemu-system-x86_64 -kernel ./kernel/bzImage -initrd ./initrd/initrd -hda /dev/
       > startAll;
       (the VMs start booting)
       > $server->waitForJob("nfs-kernel-nfsd");
-      > $client1->succeed("flock -x /data/lock -c 'sleep 100000' &");
+      > $client1->succeed("flock -x /data/lock -c 'sleep 100000' &");
       > $client2->fail("flock -n -s /data/lock true");
       > $client1->shutdown;
       (this releases client1's lock)