diff --git a/Optimizing-Shadowsocks.md b/Optimizing-Shadowsocks.md
index c43c837..e21b210 100644
--- a/Optimizing-Shadowsocks.md
+++ b/Optimizing-Shadowsocks.md
@@ -27,8 +27,12 @@ net.ipv4.tcp_fastopen = 3
 net.ipv4.tcp_rmem = 4096 87380 67108864
 net.ipv4.tcp_wmem = 4096 65536 67108864
 net.ipv4.tcp_mtu_probing = 1
-net.ipv4.tcp_congestion_control = hybla  # for high-latency network
-# net.ipv4.tcp_congestion_control = cubic  # for low-latency network, use cubic instead
+
+# for high-latency network
+net.ipv4.tcp_congestion_control = hybla
+
+# for low-latency network, use cubic instead
+# net.ipv4.tcp_congestion_control = cubic
 ```
 
 Then: