diff --git a/networking/v1alpha3/istio.networking.v1alpha3.pb.html b/networking/v1alpha3/istio.networking.v1alpha3.pb.html
index fa28552d11..e3d05c64a6 100644
--- a/networking/v1alpha3/istio.networking.v1alpha3.pb.html
+++ b/networking/v1alpha3/istio.networking.v1alpha3.pb.html
@@ -1166,7 +1166,7 @@ <h2 id="Gateway">Gateway</h2>
   - match:
     - headers:
         cookie:
-          user: dev-123
+          regex: "^(.*?;)?(user=dev-123)(;.*)?"
     route:
     - destination:
         port: