diff --git a/ares/Makefile.dj b/ares/Makefile.dj
index 26a32fbf1f3f9a64be4c2404177ca50ea15d7db2..bcae6b329c708bd07acc33fa0e1fe28528f37818 100644
--- a/ares/Makefile.dj
+++ b/ares/Makefile.dj
@@ -30,7 +30,8 @@ CFLAGS += -DWATT32 -DHAVE_AF_INET6 -DHAVE_PF_INET6 -DHAVE_IOCTLSOCKET \
           -DRECVFROM_TYPE_ARG6='int' -DRECVFROM_TYPE_RETV='int' \
           -DRECVFROM_TYPE_ARG5='struct sockaddr' -DHAVE_RECVFROM \
           -DRECVFROM_TYPE_ARG2_IS_VOID -DHAVE_STRDUP -DHAVE_NETDB_H \
-          -DHAVE_ARPA_INET_H -DHAVE_STRCASECMP -DHAVE_STRNCASECMP
+          -DHAVE_ARPA_INET_H -DHAVE_STRCASECMP -DHAVE_STRNCASECMP \
+          -DHAVE_GETHOSTNAME
 
 LDFLAGS = -s