diff --git a/client/ayon_core/hosts/max/plugins/publish/validate_extended_viewport.py b/client/ayon_core/hosts/max/plugins/publish/validate_extended_viewport.py
index 7d9e3dc6fe..8c64508a8b 100644
--- a/client/ayon_core/hosts/max/plugins/publish/validate_extended_viewport.py
+++ b/client/ayon_core/hosts/max/plugins/publish/validate_extended_viewport.py
@@ -4,7 +4,7 @@ from ayon_core.pipeline import PublishValidationError
 from pymxs import runtime as rt
 
 
-class ValidateExtendedViewport(pyblish.api.InstancePlugin):
+class ValidateExtendedViewport(pyblish.api.ContextPlugin):
     """Validate if the first viewport is an extended viewport."""
 
     order = pyblish.api.ValidatorOrder
@@ -12,7 +12,7 @@ class ValidateExtendedViewport(pyblish.api.InstancePlugin):
     hosts = ["max"]
     label = "Validate Extended Viewport"
 
-    def process(self, instance):
+    def process(self, context):
         try:
             rt.viewport.activeViewportEx(1)
         except RuntimeError: