diff --git a/PKHeX.WinForms/Util/SAVUtil.cs b/PKHeX.WinForms/Util/SAVUtil.cs
index 7c9059819..47a79ff7d 100644
--- a/PKHeX.WinForms/Util/SAVUtil.cs
+++ b/PKHeX.WinForms/Util/SAVUtil.cs
@@ -36,7 +36,7 @@ public static bool dumpBoxes(this SaveFile SAV, string path, out string result,
                 string boxfolder = "";
                 if (boxFolders)
                 {
-                    boxfolder = SAV.getBoxName(pk.Box);
+                    boxfolder = SAV.getBoxName(pk.Box - 1);
                     Directory.CreateDirectory(Path.Combine(path, boxfolder));
                 }
                 if (!File.Exists(Path.Combine(Path.Combine(path, boxfolder), fileName)))