diff --git a/rally_openstack/common/services/storage/cinder_v2.py b/rally_openstack/common/services/storage/cinder_v2.py
index 32a0027d..8208e4c0 100755
--- a/rally_openstack/common/services/storage/cinder_v2.py
+++ b/rally_openstack/common/services/storage/cinder_v2.py
@@ -155,7 +155,6 @@ class CinderV2Service(service.Service, cinder_common.CinderMixin):
                   "description": description,
                   "container": container,
                   "incremental": incremental,
-                  "force": force,
                   "snapshot_id": snapshot_id}
         backup = self._get_client().backups.create(volume_id, **kwargs)
         return self._wait_available_volume(backup)
diff --git a/rally_openstack/common/services/storage/cinder_v3.py b/rally_openstack/common/services/storage/cinder_v3.py
index 1ddb181b..7a44acef 100755
--- a/rally_openstack/common/services/storage/cinder_v3.py
+++ b/rally_openstack/common/services/storage/cinder_v3.py
@@ -157,7 +157,6 @@ class CinderV3Service(service.Service, cinder_common.CinderMixin):
                   "description": description,
                   "container": container,
                   "incremental": incremental,
-                  "force": force,
                   "snapshot_id": snapshot_id}
         backup = self._get_client().backups.create(volume_id, **kwargs)
         return self._wait_available_volume(backup)