diff --git a/flake.nix b/flake.nix
index 8df3f04..032c67f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,9 +15,10 @@
 
       packages = forEachSupportedSystem ({ pkgs }: {
         default = pkgs.writeShellScriptBin "mineschemer" ''
-        ${pkgs.chez}/bin/scheme --script ${
-          pkgs.writeText "main.scm" (builtins.readFile ./main.scm)
-        } $@
+        ${pkgs.chez}/bin/scheme \
+          --libdirs ${pkgs.raylib}/lib \
+          --script ${pkgs.writeText "main.scm" (builtins.readFile ./main.scm)} \
+          $@
         '';
       });