diff --git a/src/Data/Monoid.purs b/src/Data/Monoid.purs
index 7c6101d..71b32da 100644
--- a/src/Data/Monoid.purs
+++ b/src/Data/Monoid.purs
@@ -1,6 +1,7 @@
 module Data.Monoid
   ( class Monoid, mempty
   , power
+  , guard
   , module Data.Semigroup
   ) where