diff --git a/Haskell.gitignore b/Haskell.gitignore
index b400500f13598c1edd332fd917e3e9a1b03dc2f8..b6837ebd580b387c960d899c1dedb2ea0ed3bc07 100644
--- a/Haskell.gitignore
+++ b/Haskell.gitignore
@@ -1,4 +1,5 @@
 dist
+cabal-dev
 *.o
 *.hi
 *.chi