diff --git a/scripts/rpc.py b/scripts/rpc.py
index e58d561e0..e7d27a3fb 100755
--- a/scripts/rpc.py
+++ b/scripts/rpc.py
@@ -2073,7 +2073,7 @@ Format: 'user:u1 secret:s1 muser:mu1 msecret:ms1,user:u2 secret:s2 muser:mu2 mse
 
     p = subparsers.add_parser('nvmf_subsystem_listener_set_ana_state', help='Set ANA state of a listener for an NVMe-oF subsystem')
     p.add_argument('nqn', help='NVMe-oF subsystem NQN')
-    p.add_argument('-n', '--ana-state', help='ANA state to set: optimized, non-optimized, or inaccessible', required=True)
+    p.add_argument('-n', '--ana-state', help='ANA state to set: optimized, non_optimized, or inaccessible', required=True)
     p.add_argument('-t', '--trtype', help='NVMe-oF transport type: e.g., rdma', required=True)
     p.add_argument('-a', '--traddr', help='NVMe-oF transport address: e.g., an ip address', required=True)
     p.add_argument('-p', '--tgt-name', help='The name of the parent NVMe-oF target (optional)', type=str)