diff --git a/packages/server-handler/index.ts b/packages/server-handler/index.ts
index 074e1c9d..a099b8cb 100644
--- a/packages/server-handler/index.ts
+++ b/packages/server-handler/index.ts
@@ -113,7 +113,7 @@ export const processRoute = async (
     }
 
     // Check if Content-Type header is missing if there is a body
-    if (request.body) {
+    if (request.clone().body) {
         if (!request.headers.has("Content-Type")) {
             return errorResponse(
                 `Content-Type header is missing but required on method ${request.method}`,