diff --git a/rules.mk b/rules.mk
index 3f39eefd7b..88f64a5ebc 100644
--- a/rules.mk
+++ b/rules.mk
@@ -159,7 +159,7 @@ else
 endif
 
 ifeq ($(CONFIG_IPV6),y)
-  DISABLE_IPV6:=--enable-ipv6
+  DISABLE_IPV6:=
 else
   DISABLE_IPV6:=--disable-ipv6
 endif