diff --git a/src/sonic-config-engine/config_samples.py b/src/sonic-config-engine/config_samples.py
index 77f11a9f3d..4989b88021 100644
--- a/src/sonic-config-engine/config_samples.py
+++ b/src/sonic-config-engine/config_samples.py
@@ -86,7 +86,7 @@ def generate_t1_smartswitch_sample_config(data):
     data['MID_PLANE_BRIDGE'] = {
         'GLOBAL': {
             'bridge': bridge_name,
-            'address': '{}/24'.format(mpbr_address)
+            'ip_prefix': '{}/24'.format(mpbr_address)
         }
     }
 
diff --git a/src/sonic-config-engine/tests/sample_output/t1-smartswitch.json b/src/sonic-config-engine/tests/sample_output/t1-smartswitch.json
index 7cccb9ab12..58d91aa905 100644
--- a/src/sonic-config-engine/tests/sample_output/t1-smartswitch.json
+++ b/src/sonic-config-engine/tests/sample_output/t1-smartswitch.json
@@ -554,7 +554,7 @@
     "MID_PLANE_BRIDGE": {
         "GLOBAL": {
             "bridge": "bridge_midplane",
-            "address": "169.254.200.254/24"
+            "ip_prefix": "169.254.200.254/24"
         }
     },
     "DHCP_SERVER_IPV4": {