diff --git a/forest.toml b/forest.toml
index d67f6c6..3bc5d1d 100644
--- a/forest.toml
+++ b/forest.toml
@@ -1,6 +1,7 @@
 [forest]
 trees = ["trees"]
 assets = ["assets"]
+prefixes = ["uts", "ag", "tt", "ca", "spin", "hopf"]
 theme = "theme"
 root = "index"
 base_url = "https://utensil.github.io/forest/"