diff --git a/src/http/UnsecureWebSocketsProtocol.ts b/src/http/UnsecureWebSocketsProtocol.ts
index e18e32a63..c4dd153d5 100644
--- a/src/http/UnsecureWebSocketsProtocol.ts
+++ b/src/http/UnsecureWebSocketsProtocol.ts
@@ -1,4 +1,5 @@
 import { EventEmitter } from 'events';
+import type { TLSSocket } from 'tls';
 import type { WebSocket } from 'ws';
 import { getLoggerFor } from '../logging/LogUtil';
 import type { HttpRequest } from '../server/HttpRequest';
@@ -47,7 +48,7 @@ class WebSocketListener extends EventEmitter {
     // Store the HTTP host and protocol
     const forwarded = parseForwarded(headers);
     this.host = forwarded.host ?? headers.host ?? 'localhost';
-    this.protocol = forwarded.proto === 'https' || (socket as any).secure ? 'https:' : 'http:';
+    this.protocol = forwarded.proto === 'https' || (socket as TLSSocket).encrypted ? 'https:' : 'http:';
   }
 
   private stop(): void {
diff --git a/test/unit/http/UnsecureWebSocketsProtocol.test.ts b/test/unit/http/UnsecureWebSocketsProtocol.test.ts
index 0d95c421e..8419ea553 100644
--- a/test/unit/http/UnsecureWebSocketsProtocol.test.ts
+++ b/test/unit/http/UnsecureWebSocketsProtocol.test.ts
@@ -25,7 +25,7 @@ describe('An UnsecureWebSocketsProtocol', (): void => {
           'sec-websocket-protocol': 'solid-0.1, other/1.0.0',
         },
         socket: {
-          secure: true,
+          encrypted: true,
         },
       } as any as HttpRequest;
       await protocol.handle({ webSocket, upgradeRequest } as any);