diff --git a/src/types.ts b/src/types.ts
index 1d147aa9..61f20da7 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1061,7 +1061,6 @@ export const ServerResultSchema = z.union([
   ListResourceTemplatesResultSchema,
   ReadResourceResultSchema,
   CallToolResultSchema,
-  CompatibilityCallToolResultSchema,
   ListToolsResultSchema,
 ]);