diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 6471225d5fc..a339166fd2d 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -428,7 +428,7 @@ self: super: {
   snappy = dontCheck super.snappy;
 
   # Needs llvm to compile.
-  bytestring-arbitrary = addBuildTool super.bytestring-arbitrary pkgs.llvm;
+  bytestring-arbitrary = addBuildTool super.bytestring-arbitrary pkgs.llvm_34;
 
   # Expect to find sendmail(1) in $PATH.
   mime-mail = appendConfigureFlag super.mime-mail "--ghc-option=-DMIME_MAIL_SENDMAIL_PATH=\"sendmail\"";