diff --git a/spago.dhall b/spago.dhall
index 87c8b13..6cfcf9b 100644
--- a/spago.dhall
+++ b/spago.dhall
@@ -17,6 +17,7 @@ to generate this file without the comments in this block.
   , "effect"
   , "integers"
   , "lists"
+  , "maybe"
   , "numbers"
   , "prelude"
   , "tuples"