diff --git a/pkgs/development/compilers/elm/elm-server.nix b/pkgs/development/compilers/elm/elm-server.nix
index bce0e933732..f86c6688eb8 100644
--- a/pkgs/development/compilers/elm/elm-server.nix
+++ b/pkgs/development/compilers/elm/elm-server.nix
@@ -3,7 +3,6 @@
 }:
 
 cabal.mkDerivation (self: {
-  jailbreak = true;
   pname = "elm-server";
   version = "0.8";
   sha256 = "0mnxayfg54f5mr27sd1zw3xrdijppgvrz2yzzmhp07qc1jiyfald";
@@ -13,6 +12,7 @@ cabal.mkDerivation (self: {
     blazeHtml deepseq Elm filepath happstackServer HTTP mtl parsec
     transformers
   ];
+  jailbreak = true;
   meta = {
     homepage = "http://elm-lang.org";
     description = "The Elm language server";