diff --git a/config/cmdline_opts.h b/config/cmdline_opts.h
index 77e5683..b030f5a 100644
--- a/config/cmdline_opts.h
+++ b/config/cmdline_opts.h
@@ -40,5 +40,9 @@
 #define CMDLINE_KT_MAC2      "mac2="
 #define CMDLINE_KT_MAC3      "mac3="
 #define CMDLINE_KT_MAC4      "mac4="
+#define CMDLINE_KT_MAC5      "mac5="
+#define CMDLINE_KT_MAC6      "mac6="
+#define CMDLINE_KT_MAC7      "mac7="
+#define CMDLINE_KT_MAC8      "mac8="
 
 #endif //REDPILL_CMDLINE_OPTS_H
diff --git a/config/runtime_config.c b/config/runtime_config.c
index d4f56c5..cf37120 100644
--- a/config/runtime_config.c
+++ b/config/runtime_config.c
@@ -135,7 +135,7 @@ static inline bool validate_nets(const unsigned short if_num, mac_address * cons
 
     if (macs_num == 0) {
         pr_loc_wrn("No MAC addressed are specified - use \"%s\" or \"%s\"...\"%s\" to set them", CMDLINE_KT_MACS,
-                   CMDLINE_KT_MAC1, CMDLINE_KT_MAC4);
+                   CMDLINE_KT_MAC1, CMDLINE_KT_MAC8);
     }
 
     if (if_num != macs_num) {