diff --git a/kuser/kdigest-commands.in b/kuser/kdigest-commands.in
index 43747ffa8..c69f7da71 100644
--- a/kuser/kdigest-commands.in
+++ b/kuser/kdigest-commands.in
@@ -32,6 +32,15 @@
  */
 /* $Id$ */
 
+command = {
+	name = "digest-probe"
+	option = {
+		long = "realm"
+		type = "string"
+		help = "Kerberos realm to communicate with"
+	}
+	help = "probe what mech is allowed/supported for this server"
+}
 command = {
 	name = "digest-server-init"
 	option = {