diff --git a/PKHeX/Subforms/Save Editors/SAV_EventFlags.cs b/PKHeX/Subforms/Save Editors/SAV_EventFlags.cs
index 006653a9c..4d15c321f 100644
--- a/PKHeX/Subforms/Save Editors/SAV_EventFlags.cs	
+++ b/PKHeX/Subforms/Save Editors/SAV_EventFlags.cs	
@@ -171,8 +171,8 @@ private void addConstList(string[] list)
                 };
                 var mtb = new NumericUpDown
                 {
-                    Maximum = short.MaxValue,
-                    Minimum = short.MinValue,
+                    Maximum = ushort.MaxValue,
+                    Minimum = ushort.MinValue,
                     Value = Constants[num[i]],
                     Name = constTag + num[i].ToString("0000"),
                     Margin = Padding.Empty,