diff --git a/server/server.go b/server/server.go
index 982aaa313..9bac653a2 100644
--- a/server/server.go
+++ b/server/server.go
@@ -641,7 +641,7 @@ func (server *Server) loadConfig(configurations configs, globalConfiguration Glo
 					}
 
 					stickysession := configuration.Backends[frontend.Backend].LoadBalancer.Sticky
-					cookiename := "_TRAEFIK_BACKEND"
+					cookiename := "_TRAEFIK_BACKEND_" + frontend.Backend
 					var sticky *roundrobin.StickySession
 
 					if stickysession {