diff --git a/openstackclient/volume/v1/snapshot.py b/openstackclient/volume/v1/snapshot.py
index 5ec2b3c5ca..e81efb5aaf 100644
--- a/openstackclient/volume/v1/snapshot.py
+++ b/openstackclient/volume/v1/snapshot.py
@@ -263,6 +263,7 @@ class UnsetSnapshot(command.Command):
             default=[],
             help='Property to remove from snapshot '
                  '(repeat to remove multiple values)',
+            required=True,
         )
         return parser
 
diff --git a/openstackclient/volume/v1/type.py b/openstackclient/volume/v1/type.py
index 46d1828b1e..fced73b9c5 100644
--- a/openstackclient/volume/v1/type.py
+++ b/openstackclient/volume/v1/type.py
@@ -166,6 +166,7 @@ class UnsetVolumeType(command.Command):
             default=[],
             help='Property to remove from volume type '
                  '(repeat option to remove multiple properties)',
+            required=True,
         )
         return parser
 
diff --git a/openstackclient/volume/v1/volume.py b/openstackclient/volume/v1/volume.py
index ad9671e35f..884611eccb 100644
--- a/openstackclient/volume/v1/volume.py
+++ b/openstackclient/volume/v1/volume.py
@@ -437,6 +437,7 @@ class UnsetVolume(command.Command):
             default=[],
             help='Property to remove from volume '
                  '(repeat option to remove multiple properties)',
+            required=True,
         )
         return parser