diff --git a/services/network/mgmt/2015-06-15/network/models.go b/services/network/mgmt/2015-06-15/network/models.go
index 23ccc8c8e23f..ea0d516db344 100644
--- a/services/network/mgmt/2015-06-15/network/models.go
+++ b/services/network/mgmt/2015-06-15/network/models.go
@@ -4023,8 +4023,10 @@ type InterfaceIPConfigurationPropertiesFormat struct {
 	// PrivateIPAllocationMethod - Defines how a private IP address is assigned. Possible values are: 'Static' and 'Dynamic'. Possible values include: 'Static', 'Dynamic'
 	PrivateIPAllocationMethod IPAllocationMethod `json:"privateIPAllocationMethod,omitempty"`
 	Subnet                    *Subnet            `json:"subnet,omitempty"`
-	PublicIPAddress           *PublicIPAddress   `json:"publicIPAddress,omitempty"`
-	ProvisioningState         *string            `json:"provisioningState,omitempty"`
+	// Primary - Gets whether this is a primary customer address on the network interface.
+	Primary           *bool            `json:"primary,omitempty"`
+	PublicIPAddress   *PublicIPAddress `json:"publicIPAddress,omitempty"`
+	ProvisioningState *string          `json:"provisioningState,omitempty"`
 }
 
 // InterfaceListResult response for the ListNetworkInterface API service call.