diff --git a/src/sonic-yang-mgmt/yang-models/sonic-port.yang b/src/sonic-yang-mgmt/yang-models/sonic-port.yang
index 84bdf90351c5..bbd8c1eb4e3b 100644
--- a/src/sonic-yang-mgmt/yang-models/sonic-port.yang
+++ b/src/sonic-yang-mgmt/yang-models/sonic-port.yang
@@ -74,7 +74,7 @@ module sonic-port{
 				}
 
 				leaf index {
-					type uint8 {
+					type uint16 {
 						range 0..256;
 					}
 				}