diff --git a/bin/dune b/bin/dune
index d9d9a4a..d0f4dc7 100644
--- a/bin/dune
+++ b/bin/dune
@@ -1,9 +1,10 @@
 (executable
- (name main)
- (public_name main)
- (libraries exercises
-            miniImp
-            miniFun
-            utility)
- (package miniFun)
- )
+  (name main)
+  (public_name main)
+  (libraries exercises
+             miniImp
+             miniFun
+             utility)
+  (package miniFun)
+  (modes byte exe)
+)