diff --git a/flake.nix b/flake.nix
index 86116f1e..53cc8f43 100644
--- a/flake.nix
+++ b/flake.nix
@@ -39,6 +39,10 @@
 
             SHADERC_LIB_DIR = "${pkgs.lib.getLib pkgs.shaderc}/lib";
 
+            shellHook = ''
+              unset JAY_CONFIG_DIR
+            '';
+
             LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath (
               with pkgs;
               [