diff --git a/components/lwip/Kconfig b/components/lwip/Kconfig
index a957c1fdb5..15c94c66ba 100644
--- a/components/lwip/Kconfig
+++ b/components/lwip/Kconfig
@@ -1,13 +1,14 @@
 menu "LWIP"
 
 config LWIP_MAX_SOCKETS
-    int "Max number of open sockets, the valid value is from 1 to 16"
+    int "Max number of open sockets"
     range 1 16
     default 4
     help
         Sockets take up a certain amount of memory, and allowing fewer
         sockets to be open at the same time conserves memory. Specify
-        the maximum amount of sockets here.
+        the maximum amount of sockets here. The valid value is from 1
+        to 16.
 
 config LWIP_THREAD_LOCAL_STORAGE_INDEX
     int "Index for thread-local-storage pointer for lwip"
diff --git a/components/lwip/include/lwip/port/lwipopts.h b/components/lwip/include/lwip/port/lwipopts.h
index e72279067b..35c2800ed3 100755
--- a/components/lwip/include/lwip/port/lwipopts.h
+++ b/components/lwip/include/lwip/port/lwipopts.h
@@ -95,10 +95,6 @@ extern unsigned long os_random(void);
    ---------- Internal Memory Pool Sizes ----------
    ------------------------------------------------
 */
-/**
- * MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections.
- * (requires the LWIP_TCP option)
- */
 
 /**
  * MEMP_NUM_NETCONN: the number of struct netconns.