diff --git a/ext/lxc/lxc.c b/ext/lxc/lxc.c
index 78bbec5..f359e6a 100644
--- a/ext/lxc/lxc.c
+++ b/ext/lxc/lxc.c
@@ -612,6 +612,7 @@ err:
  * * +:stdin+
  * * +:stdout+
  * * +:stderr+
+ * * +:wait+
  */
 static VALUE
 container_attach(int argc, VALUE *argv, VALUE self)