diff --git a/components/renku_data_services/notebooks/blueprints.py b/components/renku_data_services/notebooks/blueprints.py
index 12828ea00..74eaf1c37 100644
--- a/components/renku_data_services/notebooks/blueprints.py
+++ b/components/renku_data_services/notebooks/blueprints.py
@@ -266,7 +266,6 @@ async def _handler(
             if default_resource_class.id is None:
                 raise errors.ProgrammingError(message="The default resource class has to have an ID", quiet=True)
             resource_class_id: int
-            quota: str | None = None
             if body.resource_class_id is None:
                 resource_class = await self.rp_repo.get_default_resource_class()
                 # TODO: Add types for saved and unsaved resource class
@@ -275,7 +274,6 @@ async def _handler(
                 resource_class = await self.rp_repo.get_resource_class(user, body.resource_class_id)
                 # TODO: Add types for saved and unsaved resource class
                 resource_class_id = body.resource_class_id
-                quota = resource_class.quota
             await self.nb_config.crc_validator.validate_class_storage(user, resource_class_id, body.disk_storage)
             work_dir_fallback = PurePosixPath("/home/jovyan")
             work_dir = environment.working_directory or image_workdir or work_dir_fallback
@@ -372,7 +370,7 @@ async def _handler(
                     codeRepositories=[],
                     hibernated=False,
                     reconcileStrategy=ReconcileStrategy.whenFailedOrHibernated,
-                    priorityClassName=quota,
+                    priorityClassName=resource_class.quota,
                     session=Session(
                         image=image,
                         urlPath=ui_path,
diff --git a/components/renku_data_services/notebooks/core_sessions.py b/components/renku_data_services/notebooks/core_sessions.py
index 51846b90c..ade9a327f 100644
--- a/components/renku_data_services/notebooks/core_sessions.py
+++ b/components/renku_data_services/notebooks/core_sessions.py
@@ -408,6 +408,9 @@ async def patch_session(
             patch.spec.tolerations = tolerations
         # Affinities
         patch.spec.affinity = node_affinity_from_resource_class(rc, nb_config.sessions.affinity_model)
+        # Priority class (if a quota is being used)
+        if rc.quota:
+            patch.spec.priorityClassName = rc.quota
 
     # If the session is being hibernated we do not need to patch anything else that is
     # not specifically called for in the request body, we can refresh things when the user resumes.