diff --git a/dlls/iphlpapi/ipstats.c b/dlls/iphlpapi/ipstats.c
index 3fc91eb..e585f8e 100644
--- a/dlls/iphlpapi/ipstats.c
+++ b/dlls/iphlpapi/ipstats.c
@@ -1011,7 +1011,11 @@ DWORD getNumRoutes(void)
 
       /* Ignore all entries except for gateway routes which aren't
          multicast */
+#ifdef RTF_MULTICAST
       if (!(rtm->rtm_flags & RTF_GATEWAY) || (rtm->rtm_flags & RTF_MULTICAST))
+#else
+      if (!(rtm->rtm_flags & RTF_GATEWAY))
+#endif
          continue;
 
       RouteCount++;
@@ -1087,8 +1091,12 @@ DWORD getRouteTable(PMIB_IPFORWARDTABLE *ppIpForwardTable, HANDLE heap,
 
           /* Ignore all entries except for gateway routes which aren't
              multicast */
-          if (!(rtm->rtm_flags & RTF_GATEWAY) ||
-              (rtm->rtm_flags & RTF_MULTICAST))
+
+#ifdef RTF_MULTICAST
+          if (!(rtm->rtm_flags & RTF_GATEWAY) || (rtm->rtm_flags & RTF_MULTICAST))
+#else
+          if (!(rtm->rtm_flags & RTF_GATEWAY))
+#endif
              continue;
 
           memset (&table->table[table->dwNumEntries], 0,