diff --git a/llama_stack/providers/utils/kvstore/config.py b/llama_stack/providers/utils/kvstore/config.py
index b2f56b885..03d598d62 100644
--- a/llama_stack/providers/utils/kvstore/config.py
+++ b/llama_stack/providers/utils/kvstore/config.py
@@ -55,7 +55,8 @@ class PostgresKVStoreConfig(CommonConfig):
     table_name: str = "llamastack_kvstore"
 
     @field_validator("table_name")
-    def validate_table_name(self, v: str) -> str:
+    @classmethod
+    def validate_table_name(cls, v: str) -> str:
         # PostgreSQL identifiers rules:
         # - Must start with a letter or underscore
         # - Can contain letters, numbers, and underscores