diff --git a/editor/scripts/MapNormalizer b/editor/scripts/MapNormalizer
index 297ef93c5..90fcca514 100644
--- a/editor/scripts/MapNormalizer
+++ b/editor/scripts/MapNormalizer
@@ -1,42 +1,58 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <script>
   <name>MapNormalizer</name>
-  <code><![CDATA[import java.io.File;
-import java.util.Iterator;
-import net.sf.gridarta.io.RecursiveFileIterator;
-
-void normalizeMap(File mapFile, String mapPath) {
-    print(mapPath);
-
-    map = mainControl.getMapManager().openMapFile(mapFile, false);
-    if (map == null) {
-        print("Cannot load map file");
-        return;
-    }
-
-    map.save();
-}
-
-if (baseDirectory == null || baseDirectory.length() <= 0) {
-    baseDirectory = "/";
-}
-print("Normalizing maps below " + baseDirectory + "...");
-if (baseDirectory.endsWith("/")) {
-    baseDirectory = baseDirectory.substring(0, baseDirectory.length() - 1);
-}
-
-String mapDefaultFolder = mainControl.getGlobalSettings().getMapDefaultFolder();
-String rootDirectory = mapDefaultFolder + baseDirectory;
-Iterator it = new RecursiveFileIterator(new File(rootDirectory));
-while (it.hasNext()) {
-    File file = it.next();
-    if (file.isFile()
-    && file.getPath().startsWith(rootDirectory)
-    && !file.getName().equalsIgnoreCase("README")) {
-        normalizeMap(file, file.getPath().substring(mapDefaultFolder.length()));
-    }
-}
-
+  <code><![CDATA[import java.io.File;
+import java.util.Iterator;
+import net.sf.gridarta.CommonConstants;
+import net.sf.gridarta.io.RecursiveFileIterator;
+import net.sf.gridarta.map.ShrinkMapSizeUtils;
+
+void normalizeMap(File mapFile, String mapPath) {
+    print(mapPath);
+
+    map = mainControl.getMapManager().openMapFile(mapFile, false);
+    if (map == null) {
+        print("Cannot load map file");
+        return;
+    }
+
+    if (!mapPath.startsWith("/styles")
+    && !mapPath.startsWith("/editor")) {
+        mapModel = map.getMapModel();
+        mapArchObject = mapModel.getMapArchObject();
+        int shrinkFlags = 0;
+        if (mapArchObject.getTilePath(CommonConstants.NORTH).length() <= 0 && mapArchObject.getTilePath(CommonConstants.SOUTH).length() <= 0) {
+            shrinkFlags |= ShrinkMapSizeUtils.SHRINK_EAST;
+        }
+        if (mapArchObject.getTilePath(CommonConstants.EAST).length() <= 0 && mapArchObject.getTilePath(CommonConstants.WEST).length() <= 0) {
+            shrinkFlags |= ShrinkMapSizeUtils.SHRINK_SOUTH;
+        }
+        ShrinkMapSizeUtils.shrinkMap(mapModel, shrinkFlags);
+    }
+
+    map.save();
+}
+
+if (baseDirectory == null || baseDirectory.length() <= 0) {
+    baseDirectory = "/";
+}
+print("Normalizing maps below " + baseDirectory + "...");
+if (baseDirectory.endsWith("/")) {
+    baseDirectory = baseDirectory.substring(0, baseDirectory.length() - 1);
+}
+
+String mapDefaultFolder = mainControl.getGlobalSettings().getMapDefaultFolder();
+String rootDirectory = mapDefaultFolder + baseDirectory;
+Iterator it = new RecursiveFileIterator(new File(rootDirectory));
+while (it.hasNext()) {
+    File file = it.next();
+    if (file.isFile()
+    && file.getPath().startsWith(rootDirectory)
+    && !file.getName().equalsIgnoreCase("README")) {
+        normalizeMap(file, file.getPath().substring(mapDefaultFolder.length()));
+    }
+}
+
 print("Done.");]]></code>
   <mode>
     <autoboot>false</autoboot>