diff --git a/Documentation/op-guide/clustering.md b/Documentation/op-guide/clustering.md
index 1c59d9a02..f3a1f636a 100644
--- a/Documentation/op-guide/clustering.md
+++ b/Documentation/op-guide/clustering.md
@@ -380,6 +380,7 @@ infra0.example.com.  300  IN  A  10.0.1.10
 infra1.example.com.  300  IN  A  10.0.1.11
 infra2.example.com.  300  IN  A  10.0.1.12
 ```
+
 #### Bootstrap the etcd cluster using DNS
 
 etcd cluster members can listen on domain names or IP address, the bootstrap process will resolve DNS A records.
diff --git a/Documentation/v2/clustering.md b/Documentation/v2/clustering.md
index 6bd31e50d..73a75c0b6 100644
--- a/Documentation/v2/clustering.md
+++ b/Documentation/v2/clustering.md
@@ -309,6 +309,7 @@ infra0.example.com.  300  IN  A  10.0.1.10
 infra1.example.com.  300  IN  A  10.0.1.11
 infra2.example.com.  300  IN  A  10.0.1.12
 ```
+
 #### Bootstrap the etcd cluster using DNS
 
 etcd cluster members can listen on domain names or IP address, the bootstrap process will resolve DNS A records.