diff --git a/nix/create-shell.nix b/nix/create-shell.nix
index 57f5fc49..f3549551 100644
--- a/nix/create-shell.nix
+++ b/nix/create-shell.nix
@@ -14,8 +14,9 @@
 {
   extra-packages ? [],
   extra-python-packages ? [],
+  extra-env ? [],
   openlane-plugins ? [],
-  include-openlane ? true
+  include-openlane ? true,
 }: ({
   lib,
   git,
@@ -62,7 +63,7 @@ in
         name = "NIX_PYTHONPATH";
         value = "${openlane-env-sitepackages}";
       }
-    ];
+    ] ++ extra-env;
     devshell.interactive.PS1 = {
       text = ''PS1="${prompt}"'';
     };