Index: trunk/resources/data/validator/ignoretags.cfg
===================================================================
--- trunk/resources/data/validator/ignoretags.cfg	(revision 18536)
+++ trunk/resources/data/validator/ignoretags.cfg	(revision 18537)
@@ -390,5 +390,4 @@
 K:indoor=door
 K:natural=hill
-K:natural=arete
 K:natural=slope
 K:piste:grooming=classic;skating