diff --git a/pkgs/development/tools/haskell/ihaskell/wrapper.nix b/pkgs/development/tools/haskell/ihaskell/wrapper.nix index 73050280f17..0f42a5e3490 100644 --- a/pkgs/development/tools/haskell/ihaskell/wrapper.nix +++ b/pkgs/development/tools/haskell/ihaskell/wrapper.nix @@ -9,7 +9,7 @@ let ihaskellSh = writeScriptBin "ihaskell-notebook" '' #! ${stdenv.shell} export GHC_PACKAGE_PATH="$(echo ${ihaskellEnv}/lib/*/package.conf.d| tr ' ' ':'):$GHC_PACKAGE_PATH" - export PATH="${stdenv.lib.makeBinPath ([ ihaskellEnv jupyter ])}" + export PATH="${stdenv.lib.makeBinPath ([ ihaskellEnv jupyter ])}\${PATH:+':'}$PATH" ${ihaskellEnv}/bin/ihaskell install -l $(${ihaskellEnv}/bin/ghc --print-libdir) && ${jupyter}/bin/jupyter notebook ''; in