diff --git a/src/cosmosdb-preview/azext_cosmosdb_preview/custom.py b/src/cosmosdb-preview/azext_cosmosdb_preview/custom.py
index ab4ffaf26af..5d6cc39fd4a 100644
--- a/src/cosmosdb-preview/azext_cosmosdb_preview/custom.py
+++ b/src/cosmosdb-preview/azext_cosmosdb_preview/custom.py
@@ -450,7 +450,6 @@ def cli_cosmosdb_managed_cassandra_cluster_deallocate(client,
                                                       resource_group_name,
                                                       cluster_name,
                                                       force='false'):
-
     """Deallocate Azure Managed Cassandra Cluster"""
     return client.begin_deallocate(resource_group_name, cluster_name, force)
 
diff --git a/src/cosmosdb-preview/azext_cosmosdb_preview/tests/latest/test_cosmosdb-cassandrami_scenario.py b/src/cosmosdb-preview/azext_cosmosdb_preview/tests/latest/test_cosmosdb-cassandrami_scenario.py
index b42422f0f30..eac5692b755 100644
--- a/src/cosmosdb-preview/azext_cosmosdb_preview/tests/latest/test_cosmosdb-cassandrami_scenario.py
+++ b/src/cosmosdb-preview/azext_cosmosdb_preview/tests/latest/test_cosmosdb-cassandrami_scenario.py
@@ -32,6 +32,11 @@ def test_managed_cassandra_cluster_without_datacenters(self, resource_group):
         cluster = self.cmd('az managed-cassandra cluster show -c {c} -g {rg}').get_output_in_json()
         assert cluster['properties']['provisioningState'] == 'Succeeded'
 
+        # Deallocate Cluster
+        self.cmd('az managed-cassandra cluster deallocate -c {c} -g {rg} --force \"true\" --yes')
+        cluster = self.cmd('az managed-cassandra cluster show -c {c} -g {rg}').get_output_in_json()
+        assert cluster['properties']['deallocated'] == True
+
         # Delete Cluster
         try:
             self.cmd('az managed-cassandra cluster delete -c {c} -g {rg} --yes')