diff --git a/src/lib/code-sample/schema.ts b/src/lib/code-sample/schema.ts
index 4a48553..6819b19 100644
--- a/src/lib/code-sample/schema.ts
+++ b/src/lib/code-sample/schema.ts
@@ -27,7 +27,7 @@ export const CodeSampleDefinitionSchema = z.object({
         /^[a-z_/]+$/,
         'Can only contain the lowercase letters a-z, underscores, and forward slashes.',
       ),
-    parameters: z.record(z.string().min(1), JsonSchema),
+    parameters: z.record(z.string().min(1), JsonSchema).optional().default({}),
   }),
   response: z.object({
     body: z.record(z.string().min(1), JsonSchema).nullable(),