diff --git a/test/plugin/default.nix b/test/plugin/default.nix
index 0891e6fced..d0a969ed90 100644
--- a/test/plugin/default.nix
+++ b/test/plugin/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, project', recurseIntoAttrs, testSrc, compiler-nix-name, evalPackages, buildPackages }:
+{ stdenv, lib, haskellLib, project', recurseIntoAttrs, testSrc, compiler-nix-name, evalPackages, buildPackages }:
 
 with lib;