diff --git a/samples/net/syslog_net/prj.conf b/samples/net/syslog_net/prj.conf
index 7bd3870b431422..46a0276a8201a0 100644
--- a/samples/net/syslog_net/prj.conf
+++ b/samples/net/syslog_net/prj.conf
@@ -35,7 +35,5 @@ CONFIG_NET_CONFIG_PEER_IPV4_ADDR="192.0.2.2"
 
 # logging net backend config
 CONFIG_LOG_BACKEND_NET=y
+CONFIG_POSIX_C_LANG_SUPPORT_R=y
 CONFIG_LOG_BACKEND_NET_SERVER="[2001:db8::2]:514"
-
-# Get a proper libc by default in order to get working time function support
-CONFIG_REQUIRES_FULL_LIBC=y