diff --git a/snowflake/datadog_checks/snowflake/config_models/instance.py b/snowflake/datadog_checks/snowflake/config_models/instance.py
index 381ef1fbac533..32d21f62a29b3 100644
--- a/snowflake/datadog_checks/snowflake/config_models/instance.py
+++ b/snowflake/datadog_checks/snowflake/config_models/instance.py
@@ -5,7 +5,7 @@
 
 from typing import Any, Mapping, Optional, Sequence
 
-from pydantic import BaseModel, root_validator, validator
+from pydantic import BaseModel, Field, root_validator, validator
 
 from datadog_checks.base.utils.functions import identity
 from datadog_checks.base.utils.models import validation
@@ -41,7 +41,7 @@ class Config:
     only_custom_queries: Optional[bool]
     password: str
     role: str
-    schema: Optional[str]
+    schema_: Optional[str] = Field(None, alias='schema')
     service: Optional[str]
     tags: Optional[Sequence[str]]
     token: Optional[str]