1 files changed, 1 insertions, 0 deletions

diff --git a/H56.hs b/H56.hs
index 3cf7127..c7960f4 100644
--- a/H56.hs
+++ b/H56.hs
@@ -1,3 +1,4 @@
+module H56 where
 import Tree
 
 mirror :: Tree a -> Tree a -> Bool