diff --git a/modules/std/index.sz b/modules/std/index.sz
index bfa6b59..eb92258 100644
--- a/modules/std/index.sz
+++ b/modules/std/index.sz
@@ -1,2 +1,4 @@
 (meta (title "std: the standard library")
-      (sort title))
+      (sort title)
+      (folders mixed)
+      (folder-marker? #f))
diff --git a/modules/std/mutable/index.sz b/modules/std/mutable/index.sz
index 2e62a76..3e82805 100644
--- a/modules/std/mutable/index.sz
+++ b/modules/std/mutable/index.sz
@@ -1,2 +1,2 @@
-(meta (title "std mutable: collections that change in place")
+(meta (title "(std mutable)")
       (sort title))