diff --git a/pkgs/development/libraries/haskell/websockets-snap/default.nix b/pkgs/development/libraries/haskell/websockets-snap/default.nix
index bd68d64b757..0325d9d9af0 100644
--- a/pkgs/development/libraries/haskell/websockets-snap/default.nix
+++ b/pkgs/development/libraries/haskell/websockets-snap/default.nix
@@ -12,6 +12,7 @@ cabal.mkDerivation (self: {
     blazeBuilder enumerator ioStreams mtl snapCore snapServer
     websockets
   ];
+  jailbreak = true;
   meta = {
     description = "Snap integration for the websockets library";
     license = self.stdenv.lib.licenses.bsd3;