diff --git a/include/common.h b/include/common.h
index 2f2578b..41c5fb2 100644
--- a/include/common.h
+++ b/include/common.h
@@ -833,6 +833,12 @@ static inline IPaddr_t getenv_IPaddr(char *var)
 	return string_to_ip(getenv(var));
 }
 
+#include <net6.h>
+static inline int getenv_IP6addr(char *var, IP6addr_t *a)
+{
+	return string_to_ip6(getenv(var), a);
+}
+
 /*
  * CONSOLE multiplexing.
  */
diff --git a/lib/net_utils.c b/lib/net_utils.c
index a8de103..44c414f 100644
--- a/lib/net_utils.c
+++ b/lib/net_utils.c
@@ -27,7 +27,6 @@
  */
 
 #include <common.h>
-#include <net6.h>
 #include <linux/ctype.h>
 
 IPaddr_t string_to_ip(const char *s)