diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index 36bb02f..b56b13a 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -57,6 +57,7 @@
         max_count: Count of maximum number of instances to launch.
         disk_config: Determines if user or admin controls disk configuration.
         return_reservation_id: Enable/Disable the return of reservation id
+        block_device_mapping: Block device mapping for the server.
         """
         post_body = {
             'name': name,
@@ -69,7 +70,7 @@
                        'availability_zone', 'accessIPv4', 'accessIPv6',
                        'min_count', 'max_count', ('metadata', 'meta'),
                        ('OS-DCF:diskConfig', 'disk_config'),
-                       'return_reservation_id']:
+                       'return_reservation_id', 'block_device_mapping']:
             if isinstance(option, tuple):
                 post_param = option[0]
                 key = option[1]
diff --git a/tempest/services/compute/v3/json/servers_client.py b/tempest/services/compute/v3/json/servers_client.py
index f15f370..0ccbe7f 100644
--- a/tempest/services/compute/v3/json/servers_client.py
+++ b/tempest/services/compute/v3/json/servers_client.py
@@ -55,6 +55,7 @@
         max_count: Count of maximum number of instances to launch.
         disk_config: Determines if user or admin controls disk configuration.
         return_reservation_id: Enable/Disable the return of reservation id
+        block_device_mapping: Block device mapping for the server.
         """
         post_body = {
             'name': name,
@@ -75,7 +76,9 @@
                        ('metadata', 'meta'),
                        ('os-disk-config:disk_config', 'disk_config'),
                        ('os-multiple-create:return_reservation_id',
-                        'return_reservation_id')]:
+                        'return_reservation_id'),
+                       ('os-block-device-mapping:block_device_mapping',
+                        'block_device_mapping')]:
             if isinstance(option, tuple):
                 post_param = option[0]
                 key = option[1]
diff --git a/tempest/services/compute/xml/servers_client.py b/tempest/services/compute/xml/servers_client.py
index c1105f9..626e655 100644
--- a/tempest/services/compute/xml/servers_client.py
+++ b/tempest/services/compute/xml/servers_client.py
@@ -318,6 +318,7 @@
         min_count: Count of minimum number of instances to launch.
         max_count: Count of maximum number of instances to launch.
         disk_config: Determines if user or admin controls disk configuration.
+        block_device_mapping: Block device mapping for the server.
         """
         server = xml_utils.Element("server",
                                    xmlns=xml_utils.XMLNS_11,
@@ -327,7 +328,8 @@
 
         for attr in ["adminPass", "accessIPv4", "accessIPv6", "key_name",
                      "user_data", "availability_zone", "min_count",
-                     "max_count", "return_reservation_id"]:
+                     "max_count", "return_reservation_id",
+                     "block_device_mapping"]:
             if attr in kwargs:
                 server.add_attr(attr, kwargs[attr])