diff --git a/pkgs/desktops/gnome-3/3.20/core/tracker/default.nix b/pkgs/desktops/gnome-3/3.20/core/tracker/default.nix
index f299fad7dd8..72ebd543e90 100644
--- a/pkgs/desktops/gnome-3/3.20/core/tracker/default.nix
+++ b/pkgs/desktops/gnome-3/3.20/core/tracker/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   propagatedUserEnvPkgs = [ gnome3.gnome_themes_standard ];
 
-  NIX_CFLAGS_COMPILE = "-I${gnome3.glib.dev}/include/gio-unix-2.0 -I${poppler}/include/poppler";
+  NIX_CFLAGS_COMPILE = "-I${gnome3.glib.dev}/include/gio-unix-2.0 -I${poppler.dev}/include/poppler";
 
   enableParallelBuilding = true;