diff --git a/src/server.ts b/src/server.ts
index d658ec8..9cbb65d 100644
--- a/src/server.ts
+++ b/src/server.ts
@@ -29,10 +29,12 @@ function proxyFetch(req: Request): Promise<Response> | Response {
       .catch(() => new Response('unhealthy', { status: 503 }))
   }
 
+  const hasBody = req.method !== 'GET' && req.method !== 'HEAD'
+
   return fetch(`http://localhost${url.pathname}${url.search}`, {
     method: req.method,
     headers: req.headers,
-    body: req.body,
+    body: hasBody ? req.body : undefined,
     unix: SOCKET_PATH,
   }).catch((e) => {
     console.error('Proxy error:', e)