--- a/net/minecraft/server/TileEntityStructure.java
+++ b/net/minecraft/server/TileEntityStructure.java
@@ -18,7 +18,7 @@
     public BlockPosition size;
     public EnumBlockMirror mirror;
     public EnumBlockRotation rotation;
-    private BlockPropertyStructureMode usageMode;
+    public BlockPropertyStructureMode usageMode;
     public boolean ignoreEntities;
     private boolean powered;
     public boolean showAir;