diff --git a/subsys/net/lib/websocket/websocket.c b/subsys/net/lib/websocket/websocket.c
index b6269bad7ba514..89791b614f2cec 100644
--- a/subsys/net/lib/websocket/websocket.c
+++ b/subsys/net/lib/websocket/websocket.c
@@ -419,6 +419,12 @@ static int websocket_interal_disconnect(struct websocket_context *ctx)
 
 	NET_DBG("[%p] Disconnecting", ctx);
 
+	ret = websocket_send_msg(ctx->sock, NULL, 0, WEBSOCKET_OPCODE_CLOSE,
+				 true, true, SYS_FOREVER_MS);
+	if (ret < 0) {
+		NET_ERR("[%p] Failed to send close message (err %d).", ctx, ret);
+	}
+
 	ret = close(ctx->real_sock);
 
 	websocket_context_unref(ctx);