diff --git a/pkgs/games/rili/default.nix b/pkgs/games/rili/default.nix
index 3a87fc0523c..9c6252a6dda 100644
--- a/pkgs/games/rili/default.nix
+++ b/pkgs/games/rili/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
     })
   ];
 
-  CPPFLAGS = "-I${SDL.dev}/include -I${SDL.dev}/include/SDL -I${SDL_mixer}/include";
+  CPPFLAGS = "-I${lib.getDev SDL}/include -I${lib.getDev SDL}/include/SDL -I${SDL_mixer}/include";
 
   nativeBuildInputs = [ autoreconfHook ];
   buildInputs = [ SDL SDL_mixer ];