diff --git a/doc/doxygen/lwip.Doxyfile b/doc/doxygen/lwip.Doxyfile
index 99429c6c..86284e93 100644
--- a/doc/doxygen/lwip.Doxyfile
+++ b/doc/doxygen/lwip.Doxyfile
@@ -2081,7 +2081,7 @@ PREDEFINED             = __DOXYGEN__=1 \
                          LWIP_UDP=1 \
                          LWIP_IGMP=1 \
                          LWIP_TCP=1 \
-						 LWIP_IPV6_SCOPES=1 \
+                         LWIP_IPV6_SCOPES=1 \
                          TCP_LISTEN_BACKLOG=1 \
                          LWIP_SNMP=1 \
                          SNMP_USE_NETCONN=1 \
@@ -2098,6 +2098,7 @@ PREDEFINED             = __DOXYGEN__=1 \
                          LWIP_NETIF_STATUS_CALLBACK=1 \
                          LWIP_NETIF_REMOVE_CALLBACK=1 \
                          LWIP_NETIF_LINK_CALLBACK=1 \
+                         LWIP_NETIF_EXT_STATUS_CALLBACK = 1 \
                          LWIP_NUM_NETIF_CLIENT_DATA=1 \
                          ENABLE_LOOPBACK=1 \
                          LWIP_AUTOIP=1 \