diff --git a/packages/haskell/9.0.1/compile b/packages/haskell/9.0.1/compile
index 2dd42e9..18e268b 100644
--- a/packages/haskell/9.0.1/compile
+++ b/packages/haskell/9.0.1/compile
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 
 # Compile haskell file(s)
-ghc -dynamic -v0 -o out "$@"
+rename 's/$/\.hs/' "$@" # Add .hs extension
+ghc -dynamic -v0 -o out *.hs
 chmod +x out