diff --git a/.changeset/silly-kings-look.md b/.changeset/silly-kings-look.md
new file mode 100644
index 000000000..0f4c01929
--- /dev/null
+++ b/.changeset/silly-kings-look.md
@@ -0,0 +1,5 @@
+---
+'@gitbook/react-openapi': patch
+---
+
+Remove read-only properties from codesample
diff --git a/packages/react-openapi/src/OpenAPICodeSample.tsx b/packages/react-openapi/src/OpenAPICodeSample.tsx
index c71a9e7b9..0f4161a2c 100644
--- a/packages/react-openapi/src/OpenAPICodeSample.tsx
+++ b/packages/react-openapi/src/OpenAPICodeSample.tsx
@@ -26,13 +26,17 @@ export function OpenAPICodeSample(props: {
         }
 
         if (param.in === 'header' && param.required) {
-            const example = param.schema ? generateSchemaExample(param.schema) : undefined;
+            const example = param.schema
+                ? generateSchemaExample(param.schema, { mode: 'write' })
+                : undefined;
             if (example !== undefined && param.name) {
                 headersObject[param.name] =
                     typeof example !== 'string' ? stringifyOpenAPI(example) : example;
             }
         } else if (param.in === 'query' && param.required) {
-            const example = param.schema ? generateSchemaExample(param.schema) : undefined;
+            const example = param.schema
+                ? generateSchemaExample(param.schema, { mode: 'write' })
+                : undefined;
             if (example !== undefined && param.name) {
                 searchParams.append(
                     param.name,