diff --git a/mongoose.h b/mongoose.h
index d62fc888248ed1923c8b8ba4d06aca223f124769..667835ed92a73466365d9f2315d6c023b90cc46d 100644
--- a/mongoose.h
+++ b/mongoose.h
@@ -1226,6 +1226,7 @@ int sl_set_ssl_opts(struct mg_connection *nc);
 #define SL_ERROR_FS_NOT_SUPPORTED SL_FS_ERR_NOT_SUPPORTED
 #define SL_ERROR_FS_WRONG_FILE_NAME SL_FS_WRONG_FILE_NAME
 #define SL_ERROR_FS_INVALID_HANDLE SL_FS_ERR_INVALID_HANDLE
+#define SL_NETCFG_MAC_ADDRESS_GET SL_MAC_ADDRESS_GET
 #define SL_SOCKET_FD_ZERO SL_FD_ZERO
 #define SL_SOCKET_FD_SET SL_FD_SET
 #define SL_SOCKET_FD_ISSET SL_FD_ISSET