diff --git a/boards/sim/sim/sim/configs/rpproxy/defconfig b/boards/sim/sim/sim/configs/rpproxy/defconfig
index ce3c5f11430..c0f2aa3e311 100644
--- a/boards/sim/sim/sim/configs/rpproxy/defconfig
+++ b/boards/sim/sim/sim/configs/rpproxy/defconfig
@@ -32,6 +32,7 @@ CONFIG_NET_USRSOCK=y
 CONFIG_NET_USRSOCK_OTHER=y
 CONFIG_NET_USRSOCK_TCP=y
 CONFIG_NET_USRSOCK_UDP=y
+CONFIG_NETUTILS_USRSOCK_RPMSG=y
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_PROMPT_STRING="proxy> "
@@ -54,6 +55,5 @@ CONFIG_SYSLOG_TIMESTAMP=y
 CONFIG_SYSTEM_CLE=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_PING=y
-CONFIG_SYSTEM_USRSOCK_RPMSG=y
 CONFIG_USERMAIN_STACKSIZE=4096
 CONFIG_USER_ENTRYPOINT="nsh_main"
diff --git a/boards/sim/sim/sim/configs/rpserver/defconfig b/boards/sim/sim/sim/configs/rpserver/defconfig
index b856ad55995..a253fa924ca 100644
--- a/boards/sim/sim/sim/configs/rpserver/defconfig
+++ b/boards/sim/sim/sim/configs/rpserver/defconfig
@@ -28,6 +28,7 @@ CONFIG_NETDEV_STATISTICS=y
 CONFIG_NETINIT_DHCPC=y
 CONFIG_NETINIT_THREAD=y
 CONFIG_NETUTILS_DHCPC=y
+CONFIG_NETUTILS_USRSOCK_RPMSG=y
 CONFIG_NET_ARP_SEND=y
 CONFIG_NET_BROADCAST=y
 CONFIG_NET_ICMP=y
@@ -65,6 +66,5 @@ CONFIG_SYSTEM_CUTERM=y
 CONFIG_SYSTEM_CUTERM_DEFAULT_DEVICE="/dev/ttyproxy"
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_PING=y
-CONFIG_SYSTEM_USRSOCK_RPMSG=y
 CONFIG_USERMAIN_STACKSIZE=4096
 CONFIG_USER_ENTRYPOINT="nsh_main"