diff --git a/pkgs/development/libraries/haskell/ekg/default.nix b/pkgs/development/libraries/haskell/ekg/default.nix
index beb92ef51fe7..4b639df3b7d4 100644
--- a/pkgs/development/libraries/haskell/ekg/default.nix
+++ b/pkgs/development/libraries/haskell/ekg/default.nix
@@ -12,6 +12,7 @@ cabal.mkDerivation (self: {
     aeson ekgCore filepath network snapCore snapServer text time
     transformers unorderedContainers
   ];
+  jailbreak = true;
   meta = {
     homepage = "https://github.com/tibbe/ekg";
     description = "Remote monitoring of processes";