diff --git a/internal/util/cephconf.go b/internal/util/cephconf.go
index 7c82837c6..b33c828de 100644
--- a/internal/util/cephconf.go
+++ b/internal/util/cephconf.go
@@ -28,6 +28,11 @@ auth_client_required = cephx
 
 # Workaround for http://tracker.ceph.com/issues/23446
 fuse_set_user_groups = false
+
+# ceph-fuse which uses libfuse2 by default has write buffer size of 2KiB
+# adding 'fuse_big_writes = true' option by default to override this limit
+# see https://github.com/ceph/ceph-csi/issues/1928
+fuse_big_writes = true
 `)
 
 const (