diff --git a/pkgs/development/tools/misc/global/default.nix b/pkgs/development/tools/misc/global/default.nix
index bd111c4ffbb..62d96b2158f 100644
--- a/pkgs/development/tools/misc/global/default.nix
+++ b/pkgs/development/tools/misc/global/default.nix
@@ -34,8 +34,10 @@ stdenv.mkDerivation rec {
     cp -v *.el "$out/share/emacs/site-lisp"
 
     wrapProgram $out/bin/gtags \
+      --prefix GTAGSCONF : "$out/share/gtags/gtags.conf" \
       --prefix PYTHONPATH : "$(toPythonPath ${pythonPackages.pygments})"
     wrapProgram $out/bin/global \
+      --prefix GTAGSCONF : "$out/share/gtags/gtags.conf" \
       --prefix PYTHONPATH : "$(toPythonPath ${pythonPackages.pygments})"
   '';