diff --git a/moto/rds2/models.py b/moto/rds2/models.py
index ae97ba1f2..2d9a66401 100644
--- a/moto/rds2/models.py
+++ b/moto/rds2/models.py
@@ -208,7 +208,7 @@ class Database(BaseModel):
               {% endif %}
               {% if database.iops %}
               <Iops>{{ database.iops }}</Iops>
-              <StorageType>standard</StorageType>
+              <StorageType>io1</StorageType>
               {% else %}
               <StorageType>{{ database.storage_type }}</StorageType>
               {% endif %}