diff --git a/doc/smart-switch/ip-address-assigment/smart-switch-ip-address-assignment.md b/doc/smart-switch/ip-address-assigment/smart-switch-ip-address-assignment.md
index c320b72d521..219504889c7 100755
--- a/doc/smart-switch/ip-address-assigment/smart-switch-ip-address-assignment.md
+++ b/doc/smart-switch/ip-address-assigment/smart-switch-ip-address-assignment.md
@@ -364,7 +364,7 @@ The YANG model shown in this section is provided as a reference. The complete mo
             container GLOBAL {
                 leaf bridge {
                     type string {
-                        pattern "bridge_midplane";
+                        pattern "bridge-midplane";
                     }
                     description "Name of the midplane bridge";