diff --git a/src/AspNetCore.RapiDoc/RapiDocOptions.cs b/src/AspNetCore.RapiDoc/RapiDocOptions.cs
index 859df03..1cb9ba4 100644
--- a/src/AspNetCore.RapiDoc/RapiDocOptions.cs
+++ b/src/AspNetCore.RapiDoc/RapiDocOptions.cs
@@ -120,6 +120,11 @@ public string HeadingText
         /// </summary>
         public ApiServerOptions ApiServerOptions { get; set; } = new ApiServerOptions();
 
+        /// <summary>
+        /// HTML content in predefined slots
+        /// </summary>
+        public SlotOptions SlotsOptions { get; set; } = new SlotOptions();
+
     }
 
     public class PathInfo