diff --git a/WopiHost.Discovery/DiscoveryOptions.cs b/WopiHost.Discovery/DiscoveryOptions.cs
index d015e35..cf259f3 100644
--- a/WopiHost.Discovery/DiscoveryOptions.cs
+++ b/WopiHost.Discovery/DiscoveryOptions.cs
@@ -14,7 +14,8 @@ public class DiscoveryOptions
 
         /// <summary>
         /// Determines how often should the discovery file be fetched again.
+        /// The default value is 24 hours.
         /// </summary>
-        public TimeSpan RefreshInterval { get; set; }
+        public TimeSpan RefreshInterval { get; set; } = TimeSpan.FromHours(24);
     }
 }
diff --git a/WopiHost.Web/appsettings.json b/WopiHost.Web/appsettings.json
index 9538c53..796fd87 100644
--- a/WopiHost.Web/appsettings.json
+++ b/WopiHost.Web/appsettings.json
@@ -6,7 +6,8 @@
     "HostUrl": "http://rocky-ntb:5000",
     "ClientUrl": "http://owaserver",
     "Discovery": {
-      "NetZone": "InternalHttp"
+      "NetZone": "InternalHttp",
+      "RefreshInterval": "12:00:00"
     }
   },
   "Logging": {