diff --git a/pkgs/test/haskell/documentationTarball/default.nix b/pkgs/test/haskell/documentationTarball/default.nix
index 6c4d2179114f..f67dcb7a8fbc 100644
--- a/pkgs/test/haskell/documentationTarball/default.nix
+++ b/pkgs/test/haskell/documentationTarball/default.nix
@@ -1,7 +1,7 @@
 { pkgs, haskellPackages }:
 
 let
-  drv = haskellPackages.vector;
+  drv = haskellPackages.random;
   docs = pkgs.haskell.lib.compose.documentationTarball drv;
 
 in
@@ -15,10 +15,10 @@ pkgs.runCommand "test haskell.lib.compose.documentationTarball"
     tar xvzf "${docs}/${drv.name}-docs.tar.gz"
 
     # Check for Haddock html
-    find "${drv.name}-docs" | grep -q "Data-Vector.html"
+    find "${drv.name}-docs" | grep -q "System-Random.html"
 
     # Check for source html
-    find "${drv.name}-docs" | grep -q  "src/Data.Vector.html"
+    find "${drv.name}-docs" | grep -q  "src/System.Random.html"
 
     touch "$out"
   ''