diff --git a/pom.xml b/pom.xml
index a72f84c..32a065d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>cn.lunadeer</groupId>
     <artifactId>Dominion</artifactId>
-    <version>1.13.4-beta</version>
+    <version>1.13.6-beta</version>
     <packaging>jar</packaging>
 
     <name>Dominion</name>
diff --git a/src/main/java/cn/lunadeer/dominion/commands/Operator.java b/src/main/java/cn/lunadeer/dominion/commands/Operator.java
index 6227689..0232bae 100644
--- a/src/main/java/cn/lunadeer/dominion/commands/Operator.java
+++ b/src/main/java/cn/lunadeer/dominion/commands/Operator.java
@@ -46,10 +46,10 @@ public class Operator {
                 Integer world_x2 = dom.getX2();
                 Integer world_z1 = dom.getZ1();
                 Integer world_z2 = dom.getZ2();
-                int mca_x1 = world_x1 / 512 - 1;
-                int mca_x2 = world_x2 / 512 + 1;
-                int mca_z1 = world_z1 / 512 - 1;
-                int mca_z2 = world_z2 / 512 + 1;
+                int mca_x1 = convertWorld2Mca(world_x1) - 1;
+                int mca_x2 = convertWorld2Mca(world_x2) + 1;
+                int mca_z1 = convertWorld2Mca(world_z1) - 1;
+                int mca_z2 = convertWorld2Mca(world_z2) + 1;
                 for (int x = mca_x1; x <= mca_x2; x++) {
                     for (int z = mca_z1; z <= mca_z2; z++) {
                         String file_name = "r." + x + "." + z + ".mca";
@@ -103,4 +103,8 @@ public class Operator {
         });
     }
 
+    private static int convertWorld2Mca(int world) {
+        return world < 0 ? world / 512 - 1 : world / 512;
+    }
+
 }