diff --git a/pkg/server/service/proxy.go b/pkg/server/service/proxy.go
index 13d107a32..8f3c0a418 100644
--- a/pkg/server/service/proxy.go
+++ b/pkg/server/service/proxy.go
@@ -26,6 +26,12 @@ const StatusClientClosedRequest = 499
 // StatusClientClosedRequestText non-standard HTTP status for client disconnection.
 const StatusClientClosedRequestText = "Client Closed Request"
 
+// errorLogger is a logger instance used to log proxy errors.
+// This logger is a shared instance as having one instance by proxy introduces a memory and go routine leak.
+// The writer go routine is never stopped as the finalizer is never called.
+// See https://github.com/sirupsen/logrus/blob/d1e6332644483cfee14de11099f03645561d55f8/writer.go#L57).
+var errorLogger = stdlog.New(log.WithoutContext().WriterLevel(logrus.DebugLevel), "", 0)
+
 func buildProxy(passHostHeader *bool, responseForwarding *dynamic.ResponseForwarding, roundTripper http.RoundTripper, bufferPool httputil.BufferPool) (http.Handler, error) {
 	var flushInterval ptypes.Duration
 	if responseForwarding != nil {
@@ -83,7 +89,7 @@ func buildProxy(passHostHeader *bool, responseForwarding *dynamic.ResponseForwar
 		Transport:     roundTripper,
 		FlushInterval: time.Duration(flushInterval),
 		BufferPool:    bufferPool,
-		ErrorLog:      stdlog.New(log.WithoutContext().WriterLevel(logrus.DebugLevel), "", 0),
+		ErrorLog:      errorLogger,
 		ErrorHandler: func(w http.ResponseWriter, request *http.Request, err error) {
 			statusCode := http.StatusInternalServerError