diff --git a/defaults/main.yml b/defaults/main.yml
index 096c23e..85a8a55 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -134,7 +134,7 @@ ceph_immutable_object_cache_dir: "/ceph-immutable-object-cache"
 ceph_immutable_object_cache_umask: "0002"
 ceph_immutable_object_cache_owner: "ceph"
 ceph_immutable_object_cache_group: "libvirt-qemu"
-ceph_immutable_object_cache_mode: "0755"
+ceph_immutable_object_cache_mode: "0775"
 ceph_immutable_object_cache_key_owner: "{{ ceph_immutable_object_cache_owner }}"
 ceph_immutable_object_cache_key_group: "{{ ceph_immutable_object_cache_group }}"
 
@@ -142,4 +142,4 @@ ceph_persistent_write_log_cache_enabled: False
 ceph_persistent_write_log_cache_dir: "/rbd-write-log-cache"
 ceph_persistent_write_log_cache_owner: "libvirt-qemu"
 ceph_persistent_write_log_cache_group: "ceph"
-ceph_persistent_write_log_cache_mode: "0755"
+ceph_persistent_write_log_cache_mode: "0775"