diff --git a/src/core/ipv6/mld6.c b/src/core/ipv6/mld6.c
index 97132273..9db25bab 100644
--- a/src/core/ipv6/mld6.c
+++ b/src/core/ipv6/mld6.c
@@ -44,7 +44,7 @@
 
 #include "lwip/opt.h"
 
-#if LWIP_IPV6  /* don't build if not configured for use in lwipopts.h */
+#if LWIP_IPV6 && LWIP_IPV6_MLD  /* don't build if not configured for use in lwipopts.h */
 
 #include "lwip/mld6.h"
 #include "lwip/icmp6.h"