diff --git a/manifests/init.pp b/manifests/init.pp
index 6e3798fd..d9dbf2f9 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -237,6 +237,6 @@
 # $ips = [ '10.21.30.248', '123:4567:89ab:cdef:123:4567:89ab:cdef' ]
 # validate_ip_address { $ips: }
 #
-define validate_ip_address {
+define network::validate_ip_address {
   if ! is_ip_address($name) { fail("${name} is not an IP(v6) address.") }
 } # define validate_ip_address