diff --git a/lib/context.c b/lib/context.c
index d1344595..f67476b1 100644
--- a/lib/context.c
+++ b/lib/context.c
@@ -197,6 +197,11 @@ lws_protocol_init(struct lws_context *context)
 	struct lws wsi;
 	int n;
 
+	if (context->doing_protocol_init)
+		return 0;
+
+	context->doing_protocol_init = 1;
+
 	memset(&wsi, 0, sizeof(wsi));
 	wsi.context = context;
 
@@ -261,8 +266,12 @@ lws_protocol_init(struct lws_context *context)
 			 */
 			if (vh->protocols[n].callback(&wsi,
 					LWS_CALLBACK_PROTOCOL_INIT, NULL,
-					(void *)pvo, 0))
+					(void *)pvo, 0)) {
+				lwsl_err("%s: vhost %s failed init\n", __func__,
+					 vh->protocols[n].name);
+				context->doing_protocol_init = 0;
 				return 1;
+			}
 		}
 
 		vh->created_vhost_protocols = 1;
@@ -270,6 +279,8 @@ next:
 		vh = vh->vhost_next;
 	}
 
+	context->doing_protocol_init = 0;
+
 	if (!context->protocol_init_done)
 		lws_finalize_startup(context);
 
diff --git a/lib/private-libwebsockets.h b/lib/private-libwebsockets.h
index e4d33877..74ce7c55 100644
--- a/lib/private-libwebsockets.h
+++ b/lib/private-libwebsockets.h
@@ -1116,6 +1116,7 @@ struct lws_context {
 	unsigned int requested_kill:1;
 	unsigned int protocol_init_done:1;
 	unsigned int ssl_gate_accepts:1;
+	unsigned int doing_protocol_init;
 	/*
 	 * set to the Thread ID that's doing the service loop just before entry
 	 * to poll indicates service thread likely idling in poll()