diff --git a/doc/manuals/chapters/remsim-bankd.adoc b/doc/manuals/chapters/remsim-bankd.adoc
index da529e2..7c102de 100644
--- a/doc/manuals/chapters/remsim-bankd.adoc
+++ b/doc/manuals/chapters/remsim-bankd.adoc
@@ -61,7 +61,7 @@
 
 ==== SYNOPSIS
 
-*osmo-remsim-bankd* [-h] [-V] [-d LOGOPT] [-i A.B.C.D] [-p <1-65535>] [-b <1-65535>] [-n <1-65535>] [-I A.B.C.D] [-P <1-65535> ]
+*osmo-remsim-bankd* [-h] [-V] [-d LOGOPT] [-i A.B.C.D] [-p <1-65535>] [-b <1-1023>] [-n <1-1023>] [-I A.B.C.D] [-P <1-65535> ]
 
 ==== OPTIONS
 
@@ -77,11 +77,11 @@
 *-p, --server-port <1-65535>*::
   Specify the remote TCP port number of the `osmo-remsim-server` to which
   this bankd shall establish its RSPRO control connection
-*-b, --bank-id <1-65535>*::
+*-b, --bank-id <1-1023>*::
   Specify the numeric bank identifier of the SIM bank this bankd
   instance operates.  Must be unique among all banks connecting to the
   same `osmo-remsim-server`.
-*-n, --num-slots <1-65535>*::
+*-n, --num-slots <1-1023>*::
   Specify the number of slots that this bankd handles.
 *-I, --bind-IP A.B.C.D*::
   Specify the local IP address to which the socket for incoming connections
diff --git a/doc/manuals/chapters/remsim-client.adoc b/doc/manuals/chapters/remsim-client.adoc
index efd1752..d897431 100644
--- a/doc/manuals/chapters/remsim-client.adoc
+++ b/doc/manuals/chapters/remsim-client.adoc
@@ -82,11 +82,11 @@
 *-p, --server-port <1-65535>*::
   Specify the remote TCP port number of the `osmo-remsim-server` to which
   this client shall establish its RSPRO control connection
-*-c, --client-id <1-65535>*::
+*-c, --client-id <1-1023>*::
   Specify the numeric client identifier of the SIM bank this bankd
   instance operates.  The tuple of client-id and client-slot must be
   unique among all clients connecting to the same `osmo-remsim-server`.
-*-n, --client-slot <0-65535>*::
+*-n, --client-slot <0-1023>*::
   Specify the slot number served within this client.  The tuple of
   client-id and client-slot must be unique among all clients connecting
   to the same `osmo-remsim-server`.
@@ -224,11 +224,11 @@
 *-p, --server-port <1-65535>*::
   Specify the remote TCP port number of the `osmo-remsim-server` to which
   this client shall establish its RSPRO control connection
-*-c, --client-id <1-65535>*::
+*-c, --client-id <1-1023>*::
   Specify the numeric client identifier of the SIM bank this bankd
   instance operates.  The tuple of client-id and client-slot must be
   unique among all clients connecting to the same `osmo-remsim-server`.
-*-n, --client-slot <0-65535>*::
+*-n, --client-slot <0-1023>*::
   Specify the slot number served within this client.  The tuple of
   client-id and client-slot must be unique among all clients connecting
   to the same `osmo-remsim-server`.