diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeBMCLVersionList.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeBMCLVersionList.java
index cd0cfcd10..ef37315ee 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeBMCLVersionList.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/download/forge/ForgeBMCLVersionList.java
@@ -21,6 +21,7 @@ import com.google.gson.JsonParseException;
 import com.google.gson.reflect.TypeToken;
 import org.jackhuang.hmcl.download.VersionList;
 import org.jackhuang.hmcl.util.Immutable;
+import org.jackhuang.hmcl.util.Lang;
 import org.jackhuang.hmcl.util.StringUtils;
 import org.jackhuang.hmcl.util.gson.Validation;
 import org.jackhuang.hmcl.util.io.HttpRequest;
@@ -66,12 +67,19 @@ public final class ForgeBMCLVersionList extends VersionList<ForgeRemoteVersion>
         throw new UnsupportedOperationException("ForgeBMCLVersionList does not support loading the entire Forge remote version list.");
     }
 
-    public String toLookupVersion(String version) {
-        return "1.7.10-pre4".equals(version) ? "1.7.10_pre4" : version;
+    private static String toLookupVersion(String gameVersion) {
+        return "1.7.10-pre4".equals(gameVersion) ? "1.7.10_pre4" : gameVersion;
     }
 
-    public String fromLookupVersion(String version) {
-        return "1.7.10_pre4".equals(version) ? "1.7.10-pre4" : version;
+    private static String fromLookupVersion(String lookupVersion) {
+        return "1.7.10_pre4".equals(lookupVersion) ? "1.7.10-pre4" : lookupVersion;
+    }
+
+    private static String toLookupBranch(String gameVersion, String branch) {
+        if ("1.7.10-pre4".equals(gameVersion)) {
+            return "prerelease";
+        }
+        return Lang.requireNonNullElse(branch, "");
     }
 
     @Override
@@ -93,8 +101,9 @@ public final class ForgeBMCLVersionList extends VersionList<ForgeRemoteVersion>
                             List<String> urls = new ArrayList<>();
                             for (ForgeVersion.File file : version.getFiles())
                                 if ("installer".equals(file.getCategory()) && "jar".equals(file.getFormat())) {
-                                    String classifier = lookupVersion + "-" + version.getVersion()
-                                            + (StringUtils.isNotBlank(version.getBranch()) ? "-" + version.getBranch() : "");
+                                    String branch = toLookupBranch(gameVersion, version.getBranch());
+
+                                    String classifier = lookupVersion + "-" + version.getVersion() + (branch.isEmpty() ? "" : '-' + branch);
                                     String fileName1 = "forge-" + classifier + "-" + file.getCategory() + "." + file.getFormat();
                                     String fileName2 = "forge-" + classifier + "-" + lookupVersion + "-" + file.getCategory() + "." + file.getFormat();
                                     urls.add("https://files.minecraftforge.net/maven/net/minecraftforge/forge/" + classifier + "/" + fileName1);
@@ -102,7 +111,7 @@ public final class ForgeBMCLVersionList extends VersionList<ForgeRemoteVersion>
                                     urls.add(NetworkUtils.withQuery("https://bmclapi2.bangbang93.com/forge/download", mapOf(
                                             pair("mcversion", version.getGameVersion()),
                                             pair("version", version.getVersion()),
-                                            pair("branch", version.getBranch()),
+                                            pair("branch", branch),
                                             pair("category", file.getCategory()),
                                             pair("format", file.getFormat())
                                     )));