diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/i18n/LocaleUtils.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/i18n/LocaleUtils.java
index 47d86c2af..eccb52101 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/util/i18n/LocaleUtils.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/util/i18n/LocaleUtils.java
@@ -51,11 +51,12 @@ public final class LocaleUtils {
     static {
         try (InputStream input = LocaleUtils.class.getResourceAsStream("/assets/lang/sublanguages.json")) {
             if (input != null) {
-                JsonUtils.fromJsonFully(input, JsonUtils.mapTypeOf(String.class, JsonUtils.listTypeOf(String.class))).forEach((parent, subList) -> {
-                    for (String subLanguage : subList) {
-                        subLanguageToParent.put(subLanguage, parent);
-                    }
-                });
+                JsonUtils.fromJsonFully(input, JsonUtils.mapTypeOf(String.class, JsonUtils.listTypeOf(String.class)))
+                        .forEach((parent, subList) -> {
+                            for (String subLanguage : subList) {
+                                subLanguageToParent.put(subLanguage, parent);
+                            }
+                        });
             }
         } catch (IOException e) {
             LOG.warning("Failed to load sublanguages.json file", e);
diff --git a/buildSrc/src/main/java/org/jackhuang/hmcl/gradle/l10n/CreateLanguageList.java b/buildSrc/src/main/java/org/jackhuang/hmcl/gradle/l10n/CreateLanguageList.java
index 3e887bdc8..011543e13 100644
--- a/buildSrc/src/main/java/org/jackhuang/hmcl/gradle/l10n/CreateLanguageList.java
+++ b/buildSrc/src/main/java/org/jackhuang/hmcl/gradle/l10n/CreateLanguageList.java
@@ -17,6 +17,8 @@
  */
 package org.jackhuang.hmcl.gradle.l10n;
 
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
 import org.gradle.api.DefaultTask;
 import org.gradle.api.GradleException;
 import org.gradle.api.file.DirectoryProperty;
@@ -56,7 +58,7 @@ public abstract class CreateLanguageList extends DefaultTask {
             throw new GradleException("Input directory not exists: " + inputDir);
 
 
-        SortedSet<Locale> locales = new TreeSet<>(CreateLanguageList::compareLocale);
+        SortedSet<Locale> locales = new TreeSet<>(new LocaleComparator());
         locales.addAll(getAdditionalLanguages().getOrElse(List.of()).stream()
                 .map(Locale::forLanguageTag)
                 .toList());
@@ -99,27 +101,75 @@ public abstract class CreateLanguageList extends DefaultTask {
                 .collect(Collectors.joining(",\n", "[\n", "\n]")));
     }
 
-    private static int compareLanguage(String l1, String l2) {
-        return l1.compareTo(l2); // TODO
-    }
+    private final class LocaleComparator implements Comparator<Locale> {
+        Map<String, String> subLanguageToParent = new HashMap<>();
 
-    private static int compareLocale(Locale l1, Locale l2) {
-        int c = compareLanguage(l1.getLanguage(), l2.getLanguage());
-        if (c != 0)
-            return c;
+        {
+            Path file = getProject().getRootProject().getLayout().getProjectDirectory()
+                    .file("HMCLCore/src/main/resources/assets/lang/sublanguages.json").getAsFile().toPath();
 
-        c = l1.getScript().compareTo(l2.getScript());
-        if (c != 0)
-            return c;
+            try (var reader = Files.newBufferedReader(file)) {
+                new Gson().fromJson(reader, new TypeToken<Map<String, List<String>>>() {
+                }).forEach((parent, subList) -> {
+                    for (String subLanguage : subList) {
+                        subLanguageToParent.put(subLanguage, parent);
+                    }
+                });
+            } catch (IOException e) {
+                throw new GradleException(e.getMessage(), e);
+            }
+        }
 
-        c = l1.getCountry().compareTo(l2.getCountry());
-        if (c != 0)
-            return c;
+        private List<String> resolveLanguage(String language) {
+            List<String> langList = new ArrayList<>();
 
-        c = l1.getVariant().compareTo(l2.getVariant());
-        if (c != 0)
-            return c;
+            String lang = language;
+            while (true) {
+                langList.add(0, lang);
+
+                String parent = subLanguageToParent.get(lang);
+                if (parent != null) {
+                    lang = parent;
+                } else {
+                    return langList;
+                }
+            }
+        }
+
+        private int compareLanguage(String l1, String l2) {
+            var list1 = resolveLanguage(l1);
+            var list2 = resolveLanguage(l2);
+
+            int n = Math.min(list1.size(), list2.size());
+            for (int i = 0; i < n; i++) {
+                int c = list1.get(i).compareTo(list2.get(i));
+                if (c != 0)
+                    return c;
+            }
+
+            return Integer.compare(list1.size(), list2.size());
+        }
+
+        @Override
+        public int compare(Locale l1, Locale l2) {
+            int c = compareLanguage(l1.getLanguage(), l2.getLanguage());
+            if (c != 0)
+                return c;
+
+            c = l1.getScript().compareTo(l2.getScript());
+            if (c != 0)
+                return c;
+
+            c = l1.getCountry().compareTo(l2.getCountry());
+            if (c != 0)
+                return c;
+
+            c = l1.getVariant().compareTo(l2.getVariant());
+            if (c != 0)
+                return c;
+
+            return l1.toString().compareTo(l2.toLanguageTag());
+        }
 
-        return l1.toString().compareTo(l2.toLanguageTag());
     }
 }