diff --git a/client/ayon_max/addon.py b/client/ayon_max/addon.py
index 9cc0cda1ee..05f1f9a4f8 100644
--- a/client/ayon_max/addon.py
+++ b/client/ayon_max/addon.py
@@ -13,6 +13,20 @@ class MaxAddon(AYONAddon, IHostAddon):
     host_name = "max"
 
     def add_implementation_envs(self, env, _app):
+        # Add requirements to PYTHONPATH
+        new_python_paths = [
+            os.path.join(MAX_HOST_DIR, "startup")
+        ]
+        old_python_path = env.get("PYTHONPATH") or ""
+        for path in old_python_path.split(os.pathsep):
+            if not path:
+                continue
+
+            norm_path = os.path.normpath(path)
+            if norm_path not in new_python_paths:
+                new_python_paths.append(norm_path)
+
+        env["PYTHONPATH"] = os.pathsep.join(new_python_paths)
         # Remove auto screen scale factor for Qt
         # - let 3dsmax decide it's value
         env.pop("QT_AUTO_SCREEN_SCALE_FACTOR", None)