diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 396c895b237..cb21f1a0e3b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -192,7 +192,7 @@ rec {
     inherit cabal;
   };
 
-  utf8String = import ../development/libraries/haskell/utf8-string {
+  utf8String = import ../development/libraries/haskell/utf8String {
     inherit cabal;
   };