diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 31151d39234..93903a60dad 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -165,7 +165,7 @@ self: super: {
   # https://github.com/jputcu/serialport/issues/25
   serialport = dontCheck super.serialport;
 
-  # Tries to read data files during testing but cannot find them for some reason.
+  # https://github.com/kazu-yamamoto/simple-sendfile/issues/17
   simple-sendfile = dontCheck super.simple-sendfile;
 
 }