diff --git a/models/yang/vnfd-base.yang b/models/yang/vnfd-base.yang
index 6b627b2..d52c377 100644
--- a/models/yang/vnfd-base.yang
+++ b/models/yang/vnfd-base.yang
@@ -568,12 +568,12 @@
 
           leaf mac-address {
             description
-                "MAC address of the interface.
-                Some VNFs require a specific MAC address to be configured
-                in the interface. While this is not recommended at all in
-                NFV environments, this parameter exists to allow those
-                scenarios.
-                This parameter will be likely deprecated in the future.";
+              "MAC address of the interface.
+              Some VNFs require a specific MAC address to be configured
+              in the interface. While this is not recommended at all in
+              NFV environments, this parameter exists to allow those
+              scenarios.
+              This parameter will be likely deprecated in the future.";
             type string;
           }
 
@@ -581,19 +581,19 @@
             case internal {
               leaf internal-connection-point-ref {
                 description
-                    "Leaf Ref to the particular internal connection point";
+                  "Leaf Ref to the particular internal connection point";
                 type leafref {
-                   path "../../internal-connection-point/id";
-                 }
+                  path "../../internal-connection-point/id";
+                }
               }
             }
             case external {
               leaf external-connection-point-ref {
                 description
-                    "Leaf Ref to the particular external connection point";
+                  "Leaf Ref to the particular external connection point";
                 type leafref {
-                   path "../../../connection-point/name";
-                 }
+                  path "../../../connection-point/name";
+                }
               }
             }
           }