diff --git a/middleware/proxy.go b/middleware/proxy.go
index f6b302af1..fbaefbd7a 100644
--- a/middleware/proxy.go
+++ b/middleware/proxy.go
@@ -364,9 +364,8 @@ func ProxyWithConfig(config ProxyConfig) echo.MiddlewareFunc {
 
 				// Proxy
 				switch {
-				case c.IsWebSocket():
+				case c.IsWebSocket(), req.Header.Get(echo.HeaderAccept) == "text/event-stream":
 					proxyRaw(tgt, c).ServeHTTP(res, req)
-				case req.Header.Get(echo.HeaderAccept) == "text/event-stream":
 				default:
 					proxyHTTP(tgt, c, config).ServeHTTP(res, req)
 				}