diff --git a/src/mds/Server.cc b/src/mds/Server.cc
index 1425bc23848..2c5ff3f30af 100644
--- a/src/mds/Server.cc
+++ b/src/mds/Server.cc
@@ -1363,7 +1363,9 @@ void Server::update_required_client_features()
   vector<size_t> bits = CEPHFS_FEATURES_MDS_REQUIRED;
 
   int min_compat = mds->mdsmap->get_min_compat_client();
-  if (min_compat >= CEPH_RELEASE_MIMIC)
+  if (min_compat >= CEPH_RELEASE_NAUTILUS) {
+    bits.push_back(CEPHFS_FEATURE_NAUTILUS);
+  } else if (min_compat >= CEPH_RELEASE_MIMIC)
     bits.push_back(CEPHFS_FEATURE_MIMIC);
   else if (min_compat >= CEPH_RELEASE_LUMINOUS)
     bits.push_back(CEPHFS_FEATURE_LUMINOUS);
diff --git a/src/mds/cephfs_features.h b/src/mds/cephfs_features.h
index 5a0a8599c4c..66752af2627 100644
--- a/src/mds/cephfs_features.h
+++ b/src/mds/cephfs_features.h
@@ -27,6 +27,7 @@
 #define CEPHFS_FEATURE_RECLAIM_CLIENT	10
 #define CEPHFS_FEATURE_LAZY_CAP_WANTED  11
 #define CEPHFS_FEATURE_MULTI_RECONNECT  12
+#define CEPHFS_FEATURE_NAUTILUS         12
 
 #define CEPHFS_FEATURES_ALL {		\
   0, 1, 2, 3, 4,			\
@@ -38,6 +39,7 @@
   CEPHFS_FEATURE_RECLAIM_CLIENT,	\
   CEPHFS_FEATURE_LAZY_CAP_WANTED,	\
   CEPHFS_FEATURE_MULTI_RECONNECT,	\
+  CEPHFS_FEATURE_NAUTILUS,              \
 }
 
 #define CEPHFS_FEATURES_MDS_SUPPORTED CEPHFS_FEATURES_ALL