diff --git a/SchematicSystem/src/de/steamwar/schematicsystem/autocheck/AutoChecker.java b/SchematicSystem/src/de/steamwar/schematicsystem/autocheck/AutoChecker.java
index 19ab4247..6fa2be03 100644
--- a/SchematicSystem/src/de/steamwar/schematicsystem/autocheck/AutoChecker.java
+++ b/SchematicSystem/src/de/steamwar/schematicsystem/autocheck/AutoChecker.java
@@ -85,7 +85,7 @@ public class AutoChecker {
                     }
 
                     if (x == min.x() || x == max.x() || y == max.y() || z == min.z() || z == max.z()) {
-                        result.getDesignBlocks().computeIfAbsent(material, m -> new ArrayList<>()).add(new BlockPos(x, y, z));
+                        result.getDesignBlocks().computeIfAbsent(material, m -> new ArrayList<>()).add(pos);
                     }
                 }
             }