diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/CuboidRegion.java b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/CuboidRegion.java
index cc0da6e6d..255143706 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/regions/CuboidRegion.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/regions/CuboidRegion.java
@@ -700,11 +700,11 @@ public class CuboidRegion extends AbstractRegion implements FlatRegion {
             minSection++;
         }
         if (yEnd != 15) {
-            filter(chunk, filter, block, get, set, minSection, localMinX, 0, localMinZ, localMaxX, 15, localMaxZ, full);
+            filter(chunk, filter, block, get, set, minSection, localMinX, 0, localMinZ, localMaxX, yEnd, localMaxZ, full);
             maxSection--;
         }
         for (int layer = minSection; layer <= maxSection; layer++) {
-            filter(chunk, filter, block, get, set, layer, localMinX, yStart, localMinZ, localMaxX, yEnd, localMaxZ, full);
+            filter(chunk, filter, block, get, set, layer, localMinX, 0, localMinZ, localMaxX, 15, localMaxZ, full);
         }
     }