diff --git a/src/SMAPI/Framework/Content/AssetDataForImage.cs b/src/SMAPI/Framework/Content/AssetDataForImage.cs
index 5f175217..9c71328f 100644
--- a/src/SMAPI/Framework/Content/AssetDataForImage.cs
+++ b/src/SMAPI/Framework/Content/AssetDataForImage.cs
@@ -64,7 +64,7 @@ namespace StardewModdingAPI.Framework.Content
 
                         int sourceIndex = areaY * areaWidth;
                         int targetIndex = 0;
-                        Array.Copy(source.Data, sourceIndex, sourceData, targetIndex, areaWidth);
+                        Array.Copy(source.Data, sourceIndex, sourceData, targetIndex, pixelCount);
 
                     }
                     else