diff --git a/arch/arch_config_schema.yaml b/arch/arch_config_schema.yaml
index 67073c79..ca1d3441 100644
--- a/arch/arch_config_schema.yaml
+++ b/arch/arch_config_schema.yaml
@@ -45,6 +45,8 @@ properties:
           type: string
         provider:
           type: string
+          enum:
+            - openai
         access_key:
           type: string
         model: