diff --git a/libraries/Microsoft.Bot.Schema/SharePoint/AceData.cs b/libraries/Microsoft.Bot.Schema/SharePoint/AceData.cs
index b5640c8951..da590145cf 100644
--- a/libraries/Microsoft.Bot.Schema/SharePoint/AceData.cs
+++ b/libraries/Microsoft.Bot.Schema/SharePoint/AceData.cs
@@ -84,6 +84,13 @@ public enum AceCardSize
         [JsonProperty(PropertyName = "iconProperty")]
         public string IconProperty { get; set; }
 
+        /// <summary>
+        /// Gets or sets the visibility of the Adaptive Card Extension.
+        /// </summary>
+        /// <value>The value is the flag that indicates if the Adaptive Card Extension is visible. Default to true.</value>
+        [JsonProperty(PropertyName = "isVisible")]
+        public bool? IsVisible { get; set; }
+
         /// <summary>
         /// Gets or Sets the property bag of type <see cref="JObject"/>.
         /// </summary>