diff --git a/include/netlink/cache-api.h b/include/netlink/cache-api.h
index ccb4098..dd42671 100644
--- a/include/netlink/cache-api.h
+++ b/include/netlink/cache-api.h
@@ -168,11 +168,6 @@ struct nl_parser_param
 	void *            pp_arg;
 };
 
-/**
- * Cache flags
- */
-#define NL_CACHE_AF_ITER	0x0001
-
 /**
  * Cache Operations
  *
diff --git a/include/netlink/cache.h b/include/netlink/cache.h
index 7de389d..1eb1427 100644
--- a/include/netlink/cache.h
+++ b/include/netlink/cache.h
@@ -24,6 +24,12 @@ extern "C" {
 
 struct nl_cache;
 
+/**
+ * @ingroup cache
+ * Explicitely iterate over all address families when updating the cache
+ */
+#define NL_CACHE_AF_ITER	0x0001
+
 /* Access Functions */
 extern int			nl_cache_nitems(struct nl_cache *);
 extern int			nl_cache_nitems_filter(struct nl_cache *,