diff --git a/Penumbra/Importer/Models/SimpleModPack.cs b/Penumbra/Importer/Models/SimpleModPack.cs
index e0a084e8..332e18c0 100644
--- a/Penumbra/Importer/Models/SimpleModPack.cs
+++ b/Penumbra/Importer/Models/SimpleModPack.cs
@@ -17,8 +17,8 @@ namespace Penumbra.Importer.Models
         public string Name { get; set; }
         public string Category { get; set; }
         public string FullPath { get; set; }
-        public int ModOffset { get; set; }
-        public int ModSize { get; set; }
+        public long ModOffset { get; set; }
+        public long ModSize { get; set; }
         public string DatFile { get; set; }
         public object ModPackEntry { get; set; }
     }