diff --git a/net/tcp/tcp_send_unbuffered.c b/net/tcp/tcp_send_unbuffered.c
index efffe4793f5..4620532342c 100644
--- a/net/tcp/tcp_send_unbuffered.c
+++ b/net/tcp/tcp_send_unbuffered.c
@@ -260,7 +260,7 @@ static inline bool psock_send_addrchck(FAR struct tcp_conn_s *conn)
 }
 
 #else /* CONFIG_NET_ETHERNET */
-#  psock_send_addrchck(r) (true)
+#  define  psock_send_addrchck(r) (true)
 #endif /* CONFIG_NET_ETHERNET */
 
 /****************************************************************************