diff --git a/src/core/plugins/oas3/components/request-body.jsx b/src/core/plugins/oas3/components/request-body.jsx
index 666e708d..e3c73ecc 100644
--- a/src/core/plugins/oas3/components/request-body.jsx
+++ b/src/core/plugins/oas3/components/request-body.jsx
@@ -14,7 +14,7 @@ export default ({ requestBody, getComponent, specSelectors, contentType }) => {
 
   const mediaTypeValue = requestBodyContent.get(contentType)
 
-  const sampleSchema = getSampleSchema(mediaTypeValue.get("schema"))
+  const sampleSchema = getSampleSchema(mediaTypeValue.get("schema").toJS(), contentType)
 
   return <div>
     { requestBodyDescription &&