diff --git a/_jonas b/_jonas
index 8f49710..e0453cb 100644
--- a/_jonas
+++ b/_jonas
@@ -101,7 +101,7 @@ _jonas() {
             '-username[set the username when authentication is required]: :_users' \
             '-password[set the password when authentication is required]:password' \
             '-registry[set the registry URL]: :_urls' \
-            '-protocol[set the protocol name]:protocol:((jrmp iiop irmi))' \
+            '-protocol[set the protocol name]:protocol:((jrmp\:JRE\ implementation\ of\ RMI\ on\ the\ JRMP\ protocol\ \(default\) iiop\:JacORB\ implementation\ of\ RMI\ over\ the\ IIOP\ protocol irmi\:Oracle\ JRE\ independant\ implementation\ of\ RMI))' \
             '-a[deploy an application from a given filepath on the current server, or on another target in the domain if the current server is a master]:Java application archive:_files -g "*.(j|w|r|e)ar"' \
             '-r[undeploy a previously deployed application from the current server or from the specified target if the current server is a master]:Java application archive:_files -g "*.(j|w|r|e)ar"' \
             '-gc[run the garbage collector on the current JOnAS server]' \