diff --git a/Bookshelf.lean b/Bookshelf.lean
index 4cd3a3c..62113ba 100644
--- a/Bookshelf.lean
+++ b/Bookshelf.lean
@@ -1,3 +1,4 @@
 import Bookshelf.Combinator
 import Bookshelf.List
+import Bookshelf.LTuple
 import Bookshelf.Real