diff --git a/ospfd/ospf_packet.c b/ospfd/ospf_packet.c
index 25f70bb..b997f1b 100644
--- a/ospfd/ospf_packet.c
+++ b/ospfd/ospf_packet.c
@@ -882,7 +882,7 @@
   /* Compare options. */
 #define REJECT_IF_TBIT_ON	1 /* XXX */
 #ifdef REJECT_IF_TBIT_ON
-  if (CHECK_FLAG (hello->options, OSPF_OPTION_T))
+  if (CHECK_FLAG (hello->options, OSPF_OPTION_MT))
     {
       /*
        * This router does not support non-zero TOS.
@@ -1231,7 +1231,7 @@
     }
 
 #ifdef REJECT_IF_TBIT_ON
-  if (CHECK_FLAG (dd->options, OSPF_OPTION_T))
+  if (CHECK_FLAG (dd->options, OSPF_OPTION_MT))
     {
       /*
        * In Hello protocol, optional capability must have checked