diff --git a/packages/python/src/armonik/client/partitions.py b/packages/python/src/armonik/client/partitions.py
index 6da7d5d6f..222a92c51 100644
--- a/packages/python/src/armonik/client/partitions.py
+++ b/packages/python/src/armonik/client/partitions.py
@@ -74,7 +74,7 @@ def list_partitions(
             page_size=page_size,
             filters=cast(rawFilters, partition_filter.to_disjunction().to_message())
             if partition_filter
-            else None,
+            else rawFilters(),
             sort=ListPartitionsRequest.Sort(
                 field=cast(PartitionField, sort_field.field), direction=sort_direction
             ),
diff --git a/packages/python/src/armonik/client/results.py b/packages/python/src/armonik/client/results.py
index ad9b07a95..f462ad385 100644
--- a/packages/python/src/armonik/client/results.py
+++ b/packages/python/src/armonik/client/results.py
@@ -116,7 +116,7 @@ def list_results(
             page_size=page_size,
             filters=cast(rawFilters, result_filter.to_disjunction().to_message())
             if result_filter
-            else None,
+            else rawFilters(),
             sort=ListResultsRequest.Sort(
                 field=cast(ResultField, sort_field.field), direction=sort_direction
             ),
diff --git a/packages/python/src/armonik/client/sessions.py b/packages/python/src/armonik/client/sessions.py
index b5fd67ab2..02b5dcf7e 100644
--- a/packages/python/src/armonik/client/sessions.py
+++ b/packages/python/src/armonik/client/sessions.py
@@ -140,7 +140,7 @@ def list_sessions(
             page_size=page_size,
             filters=cast(rawFilters, session_filter.to_disjunction().to_message())
             if session_filter
-            else None,
+            else rawFilters(),
             sort=ListSessionsRequest.Sort(
                 field=cast(SessionField, sort_field.field), direction=sort_direction
             ),
diff --git a/packages/python/src/armonik/client/tasks.py b/packages/python/src/armonik/client/tasks.py
index 0159e661e..ef69ccae2 100644
--- a/packages/python/src/armonik/client/tasks.py
+++ b/packages/python/src/armonik/client/tasks.py
@@ -320,7 +320,7 @@ def list_tasks(
             page_size=page_size,
             filters=cast(rawFilters, task_filter.to_disjunction().to_message())
             if task_filter
-            else None,
+            else rawFilters(),
             sort=ListTasksRequest.Sort(
                 field=cast(TaskField, sort_field.field), direction=sort_direction
             ),
@@ -379,7 +379,7 @@ def count_tasks_by_status(self, task_filter: Filter | None = None) -> Dict[TaskS
         request = CountTasksByStatusRequest(
             filters=cast(rawFilters, task_filter.to_disjunction().to_message())
             if task_filter
-            else None
+            else rawFilters()
         )
         count_tasks_by_status_response: CountTasksByStatusResponse = (
             self._client.CountTasksByStatus(request)