diff --git a/.changeset/spotty-apples-crash.md b/.changeset/spotty-apples-crash.md
new file mode 100644
index 000000000..20aa75e6d
--- /dev/null
+++ b/.changeset/spotty-apples-crash.md
@@ -0,0 +1,6 @@
+---
+'@gitbook/openapi-parser': patch
+'@gitbook/react-openapi': patch
+---
+
+Optional label in OpenAPI x-codeSamples
diff --git a/packages/openapi-parser/src/types.ts b/packages/openapi-parser/src/types.ts
index fa5b6ade3..79a0b66ed 100644
--- a/packages/openapi-parser/src/types.ts
+++ b/packages/openapi-parser/src/types.ts
@@ -79,7 +79,7 @@ export type OpenAPIStability = 'experimental' | 'alpha' | 'beta';
  */
 export interface OpenAPICustomCodeSample {
     lang: string;
-    label: string;
+    label?: string;
     source: string;
 }
 
diff --git a/packages/react-openapi/src/OpenAPICodeSample.tsx b/packages/react-openapi/src/OpenAPICodeSample.tsx
index 8bffb6d9a..4e51d26ee 100644
--- a/packages/react-openapi/src/OpenAPICodeSample.tsx
+++ b/packages/react-openapi/src/OpenAPICodeSample.tsx
@@ -253,15 +253,11 @@ function getCustomCodeSamples(props: {
         if (customSamples && Array.isArray(customSamples)) {
             customCodeSamples = customSamples
                 .filter((sample) => {
-                    return (
-                        typeof sample.label === 'string' &&
-                        typeof sample.source === 'string' &&
-                        typeof sample.lang === 'string'
-                    );
+                    return typeof sample.source === 'string' && typeof sample.lang === 'string';
                 })
                 .map((sample, index) => ({
                     key: `custom-sample-${sample.lang}-${index}`,
-                    label: sample.label,
+                    label: sample.label || sample.lang,
                     body: context.renderCodeBlock({
                         code: sample.source,
                         syntax: sample.lang,