diff --git a/GameRes/GameRes.cs b/GameRes/GameRes.cs
index a50ec657..5b6ac206 100644
--- a/GameRes/GameRes.cs
+++ b/GameRes/GameRes.cs
@@ -51,7 +51,7 @@ namespace GameRes
         /// </summary>
         public bool CheckPlacement (long max_offset)
         {
-            return Offset < max_offset && Size < max_offset && Offset <= max_offset - Size;
+            return Offset < max_offset && Size <= max_offset && Offset <= max_offset - Size;
         }
     }