diff --git a/RegexBot/Module/AutoMod/ConfigItem.cs b/RegexBot/Module/AutoMod/ConfigItem.cs
index f8795a3..c265aa1 100644
--- a/RegexBot/Module/AutoMod/ConfigItem.cs
+++ b/RegexBot/Module/AutoMod/ConfigItem.cs
@@ -157,6 +157,7 @@ namespace Noikoio.RegexBot.Module.AutoMod
             string msgcontent;
             if (MatchEmbed) msgcontent = SerializeEmbed(m.Embeds);
             else msgcontent = m.Content;
+            if (msgcontent == null) return false;
 
             // Min/max length check
             if (_msgMinLength != -1 && msgcontent.Length <= _msgMinLength) return false;