diff --git a/proxy/proxy.go b/proxy/proxy.go
index ccb6b43..adf5c87 100644
--- a/proxy/proxy.go
+++ b/proxy/proxy.go
@@ -423,8 +423,8 @@ func (p *Proxy) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 			w.WriteHeader(http.StatusBadGateway)
 			buf := make([]byte, 64<<10) //nolint:gomnd
 			n := runtime.Stack(buf, false)
-			log.Errorf("panic recovered: %s", buf[:n])
-			fmt.Fprintf(os.Stderr, "panic recovered: %s\n", buf[:n])
+			log.Errorf("panic recovered: %+v\n%s", err, buf[:n])
+			fmt.Fprintf(os.Stderr, "panic recovered: %+v\n%s\n", err, buf[:n])
 		}
 	}()
 	p.router.Load().(router.Router).ServeHTTP(w, req)