diff --git a/moto/redshift/models.py b/moto/redshift/models.py
index 1f868e69f71a..66031dc4a349 100644
--- a/moto/redshift/models.py
+++ b/moto/redshift/models.py
@@ -157,6 +157,7 @@ def __init__(
         self.restored_from_snapshot = restored_from_snapshot
         self.kms_key_id = kms_key_id
         self.cluster_snapshot_copy_status: Optional[Dict[str, Any]] = None
+        self.total_storage_capacity = 0
 
     @staticmethod
     def cloudformation_name_type() -> str:
@@ -313,6 +314,7 @@ def to_json(self) -> Dict[str, Any]:
                 for iam_role_arn in self.iam_roles_arn
             ],
             "KmsKeyId": self.kms_key_id,
+            "TotalStorageCapacityInMegaBytes": self.total_storage_capacity,
         }
         if self.restored_from_snapshot:
             json_response["RestoreStatus"] = {
diff --git a/tests/test_redshift/test_redshift.py b/tests/test_redshift/test_redshift.py
index 2d6baa7a2c95..b765e10ddedd 100644
--- a/tests/test_redshift/test_redshift.py
+++ b/tests/test_redshift/test_redshift.py
@@ -219,6 +219,7 @@ def test_create_cluster_all_attributes():
     assert cluster["ClusterVersion"] == "1.0"
     assert cluster["AllowVersionUpgrade"] is True
     assert cluster["NumberOfNodes"] == 3
+    assert cluster["TotalStorageCapacityInMegaBytes"] == 0
 
 
 @mock_redshift