diff --git a/packages/tspec/src/generator/openapiGenerator.ts b/packages/tspec/src/generator/openapiGenerator.ts
index 47a3cc4..a9679a5 100644
--- a/packages/tspec/src/generator/openapiGenerator.ts
+++ b/packages/tspec/src/generator/openapiGenerator.ts
@@ -109,7 +109,7 @@ export const getOpenapiPaths = (
     const headerParams = getObjectPropertyByPath(spec, 'header', openapiSchemas) as any;
     const cookieParams = getObjectPropertyByPath(spec, 'cookie', openapiSchemas) as any;
 
-    const bodyParams = getObjectPropertyByPath(spec, 'body', openapiSchemas) as any;
+    const { mediaType = '', ...bodyParams } = getObjectPropertyByPath(spec, 'body', openapiSchemas) as any;
 
     const operation = {
       operationId: `${controllerName}_${method}_${path}`,
@@ -127,7 +127,7 @@ export const getOpenapiPaths = (
         description: bodyParams.description,
         required: true,
         content: {
-          [bodyParams.mediaType || 'application/json']: {
+          [mediaType || 'application/json']: {
             schema: bodyParams,
           },
         },