diff --git a/server_addon/houdini/client/ayon_houdini/api/plugin.py b/server_addon/houdini/client/ayon_houdini/api/plugin.py
index 0e2308e948..9c6bba925a 100644
--- a/server_addon/houdini/client/ayon_houdini/api/plugin.py
+++ b/server_addon/houdini/client/ayon_houdini/api/plugin.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 """Houdini specific Avalon/Pyblish plugin definitions."""
-import os
 import sys
 from abc import (
     ABCMeta
@@ -393,22 +392,3 @@ class HoudiniExtractorPlugin(publish.Extractor):
 
     hosts = ["houdini"]
     settings_category = SETTINGS_CATEGORY
-
-    def validate_expected_frames(self, instance, staging_dir):
-        """
-        Validate all expected files in `instance.data["frames"]` exist in
-        the staging directory.
-        """
-        filenames = instance.data["frames"]
-        if isinstance(filenames, str):
-            # Single frame
-            filenames = [filenames]
-
-        missing_filenames = []
-        for filename in filenames:
-            path = os.path.join(staging_dir, filename)
-            if not os.path.isfile(path):
-                missing_filenames.append(filename)
-        if missing_filenames:
-            raise RuntimeError(f"Missing frames: {missing_filenames}")
-
diff --git a/server_addon/houdini/client/ayon_houdini/plugins/publish/extract_rop.py b/server_addon/houdini/client/ayon_houdini/plugins/publish/extract_rop.py
index 7b9e389f79..ed0c3f9855 100644
--- a/server_addon/houdini/client/ayon_houdini/plugins/publish/extract_rop.py
+++ b/server_addon/houdini/client/ayon_houdini/plugins/publish/extract_rop.py
@@ -58,6 +58,24 @@ class ExtractROP(plugin.HoudiniExtractorPlugin):
         instance.data.setdefault("representations", []).append(representation)
         instance.data["stagingDir"] = staging_dir
 
+    def validate_expected_frames(self, instance, staging_dir):
+        """
+        Validate all expected files in `instance.data["frames"]` exist in
+        the staging directory.
+        """
+        filenames = instance.data["frames"]
+        if isinstance(filenames, str):
+            # Single frame
+            filenames = [filenames]
+
+        missing_filenames = []
+        for filename in filenames:
+            path = os.path.join(staging_dir, filename)
+            if not os.path.isfile(path):
+                missing_filenames.append(filename)
+        if missing_filenames:
+            raise RuntimeError(f"Missing frames: {missing_filenames}")
+
     def update_representation_data(self,
                                    instance: pyblish.api.Instance,
                                    representation: dict):