diff --git a/TShockAPI/DB/UserManager.cs b/TShockAPI/DB/UserManager.cs
index c819c40e..0c0dc5ff 100644
--- a/TShockAPI/DB/UserManager.cs
+++ b/TShockAPI/DB/UserManager.cs
@@ -76,7 +76,7 @@ namespace TShockAPI.DB
 			catch (Exception ex)
 			{
 				// Detect duplicate user using a regexp as Sqlite doesn't have well structured exceptions
-				if (Regex.IsMatch(ex.Message, "Username.*not unique"))
+				if (Regex.IsMatch(ex.Message, "Username.*not unique|UNIQUE constraint failed: Users\\.Username"))
 					throw new UserAccountExistsException(account.Name);
 				throw new UserAccountManagerException("AddUser SQL returned an error (" + ex.Message + ")", ex);
 			}