diff --git a/src/radv.c b/src/radv.c
index 88395db..22c2d1f 100644
--- a/src/radv.c
+++ b/src/radv.c
@@ -597,7 +597,7 @@
       
       if ((context->flags & CONTEXT_OLD) && 
 	  context->if_index != 0 && 
-	  indextoname(daemon->icmp6fd, param.iface, param.name))
+	  indextoname(daemon->icmp6fd, context->if_index, param.name))
 	{
 	  /* A context for an old address. We'll not find the interface by 
 	     looking for addresses, but we know it anyway, since the context is