diff --git a/roles/haskell-dev.nix b/roles/haskell-dev.nix
index 4bdfebb..a0cf57b 100644
--- a/roles/haskell-dev.nix
+++ b/roles/haskell-dev.nix
@@ -5,7 +5,8 @@
 {
 
   environment.systemPackages = with pkgs; [
-    haskellPackages.ghc   # Glasgow Haskell Compiler
+    haskellPackages.cabal-install   # Haskell software automation
+    haskellPackages.ghc             # Glasgow Haskell Compiler
   ];
 
 }