diff --git a/nixos/configuration.nix b/nixos/configuration.nix
index 9757a09..c7f7860 100644
--- a/nixos/configuration.nix
+++ b/nixos/configuration.nix
@@ -84,6 +84,11 @@
     variant = "";
   };
 
+  # PKG config
+    shellHook = ''
+    export PKG_CONFIG_PATH=${pkgs.gtkmm}/lib/pkgconfig:$PKG_CONFIG_PATH
+  '';
+
   # Configure console keymap
   console.keyMap = "uk";