diff --git a/src/SDKs/Reservations/Management.Reservations/Generated/Models/InstanceFlexibility.cs b/src/SDKs/Reservations/Management.Reservations/Generated/Models/InstanceFlexibility.cs
index dd8fc9c44f37..17ba3b98908a 100644
--- a/src/SDKs/Reservations/Management.Reservations/Generated/Models/InstanceFlexibility.cs
+++ b/src/SDKs/Reservations/Management.Reservations/Generated/Models/InstanceFlexibility.cs
@@ -16,7 +16,7 @@ namespace Microsoft.Azure.Management.Reservations.Models
     /// </summary>
     public static class InstanceFlexibility
     {
-        public const string True = "True";
-        public const string False = "False";
+        public const string On = "On";
+        public const string Off = "Off";
     }
 }
diff --git a/src/SDKs/Reservations/Management.Reservations/Generated/Models/Patch.cs b/src/SDKs/Reservations/Management.Reservations/Generated/Models/Patch.cs
index fb36b90394d8..03e58a9113ac 100644
--- a/src/SDKs/Reservations/Management.Reservations/Generated/Models/Patch.cs
+++ b/src/SDKs/Reservations/Management.Reservations/Generated/Models/Patch.cs
@@ -33,8 +33,8 @@ public Patch()
         /// </summary>
         /// <param name="appliedScopeType">Possible values include: 'Single',
         /// 'Shared'</param>
-        /// <param name="instanceFlexibility">Possible values include: 'True',
-        /// 'False'</param>
+        /// <param name="instanceFlexibility">Possible values include: 'On',
+        /// 'Off'</param>
         /// <param name="name">Name of the Reservation</param>
         public Patch(string appliedScopeType = default(string), IList<string> appliedScopes = default(IList<string>), string instanceFlexibility = default(string), string name = default(string))
         {
@@ -62,7 +62,7 @@ public Patch()
         public IList<string> AppliedScopes { get; set; }
 
         /// <summary>
-        /// Gets or sets possible values include: 'True', 'False'
+        /// Gets or sets possible values include: 'On', 'Off'
         /// </summary>
         [JsonProperty(PropertyName = "properties.instanceFlexibility")]
         public string InstanceFlexibility { get; set; }
diff --git a/src/SDKs/Reservations/Management.Reservations/Generated/Models/PurchaseRequestPropertiesReservedResourceProperties.cs b/src/SDKs/Reservations/Management.Reservations/Generated/Models/PurchaseRequestPropertiesReservedResourceProperties.cs
index e4385db1a2a6..0aa34c9b045a 100644
--- a/src/SDKs/Reservations/Management.Reservations/Generated/Models/PurchaseRequestPropertiesReservedResourceProperties.cs
+++ b/src/SDKs/Reservations/Management.Reservations/Generated/Models/PurchaseRequestPropertiesReservedResourceProperties.cs
@@ -32,8 +32,8 @@ public PurchaseRequestPropertiesReservedResourceProperties()
         /// Initializes a new instance of the
         /// PurchaseRequestPropertiesReservedResourceProperties class.
         /// </summary>
-        /// <param name="instanceFlexibility">Possible values include: 'True',
-        /// 'False'</param>
+        /// <param name="instanceFlexibility">Possible values include: 'On',
+        /// 'Off'</param>
         public PurchaseRequestPropertiesReservedResourceProperties(string instanceFlexibility = default(string))
         {
             InstanceFlexibility = instanceFlexibility;
@@ -46,7 +46,7 @@ public PurchaseRequestPropertiesReservedResourceProperties()
         partial void CustomInit();
 
         /// <summary>
-        /// Gets or sets possible values include: 'True', 'False'
+        /// Gets or sets possible values include: 'On', 'Off'
         /// </summary>
         [JsonProperty(PropertyName = "instanceFlexibility")]
         public string InstanceFlexibility { get; set; }
diff --git a/src/SDKs/Reservations/Management.Reservations/Generated/Models/ReservationProperties.cs b/src/SDKs/Reservations/Management.Reservations/Generated/Models/ReservationProperties.cs
index bb48539d5f54..f1e82e4bc6ef 100644
--- a/src/SDKs/Reservations/Management.Reservations/Generated/Models/ReservationProperties.cs
+++ b/src/SDKs/Reservations/Management.Reservations/Generated/Models/ReservationProperties.cs
@@ -32,8 +32,8 @@ public ReservationProperties()
         /// </summary>
         /// <param name="reservedResourceType">Possible values include:
         /// 'VirtualMachines', 'SqlDatabases', 'SuseLinux', 'CosmosDb'</param>
-        /// <param name="instanceFlexibility">Possible values include: 'True',
-        /// 'False'</param>
+        /// <param name="instanceFlexibility">Possible values include: 'On',
+        /// 'Off'</param>
         /// <param name="displayName">Friendly name for user to easily identify
         /// the reservation</param>
         /// <param name="appliedScopeType">Possible values include: 'Single',
@@ -80,7 +80,7 @@ public ReservationProperties()
         public string ReservedResourceType { get; set; }
 
         /// <summary>
-        /// Gets or sets possible values include: 'True', 'False'
+        /// Gets or sets possible values include: 'On', 'Off'
         /// </summary>
         [JsonProperty(PropertyName = "instanceFlexibility")]
         public string InstanceFlexibility { get; set; }