diff --git a/PluralKit.Bot/Errors.cs b/PluralKit.Bot/Errors.cs
index bfd29442..d9279363 100644
--- a/PluralKit.Bot/Errors.cs
+++ b/PluralKit.Bot/Errors.cs
@@ -112,7 +112,7 @@ namespace PluralKit.Bot
 
         public static PKError GenericCancelled() => new PKError("Operation cancelled.");
 
-        public static PKError AttachmentTooLarge => new PKError("PluralKit cannot proxy attachments over 8 megabytes (as webhooks aren't considered as having Discord Nitro) :(");
+        public static PKError AttachmentTooLarge(int mb) => new PKError($"PluralKit cannot proxy attachments over {mb} megabytes in this server (as webhooks aren't considered as having Discord Nitro) :(");
         public static PKError LookupNotAllowed => new PKError("You do not have permission to access this information.");
         public static PKError ChannelNotFound(string channelString) => new PKError($"Channel \"{channelString}\" not found or is not in this server.");
     }
diff --git a/PluralKit.Bot/Services/WebhookExecutorService.cs b/PluralKit.Bot/Services/WebhookExecutorService.cs
index 4ab560f8..d91b6172 100644
--- a/PluralKit.Bot/Services/WebhookExecutorService.cs
+++ b/PluralKit.Bot/Services/WebhookExecutorService.cs
@@ -200,7 +200,7 @@ namespace PluralKit.Bot
 
             foreach (var attachment in attachments)
             {
-                if (attachment.Size >= sizeThreshold) throw Errors.AttachmentTooLarge;
+                if (attachment.Size >= sizeThreshold) throw Errors.AttachmentTooLarge(sizeThreshold);
 
                 if (list.Sum(a => a.Size) + attachment.Size >= sizeThreshold)
                 {