diff --git a/PKHeX.WinForms/Controls/PKM Editor/TrainerID.cs b/PKHeX.WinForms/Controls/PKM Editor/TrainerID.cs
index ebcf9108a..4ae541b28 100644
--- a/PKHeX.WinForms/Controls/PKM Editor/TrainerID.cs	
+++ b/PKHeX.WinForms/Controls/PKM Editor/TrainerID.cs	
@@ -118,7 +118,7 @@ private void Update_ID(object sender, EventArgs e)
             if (!(sender is MaskedTextBox mt))
                 return;
 
-            if (int.TryParse(mt.Text, out var val))
+            if (!int.TryParse(mt.Text, out var val))
                 val = 0;
             if (mt == TB_TID7)
             {