diff --git a/pkgs/development/libraries/haskell/jwt/default.nix b/pkgs/development/libraries/haskell/jwt/default.nix
index e67b9e5b8df2..d9e4ce8f0dd9 100644
--- a/pkgs/development/libraries/haskell/jwt/default.nix
+++ b/pkgs/development/libraries/haskell/jwt/default.nix
@@ -1,3 +1,5 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
 { cabal, aeson, base64Bytestring, cryptohash, dataDefault
 , httpTypes, HUnit, network, QuickCheck, scientific, tasty
 , tastyHunit, tastyQuickcheck, tastyTh, text, time