diff --git a/ServerWrapper/src/main/java/pro/gravit/launcher/server/authlib/InstallAuthlib.java b/ServerWrapper/src/main/java/pro/gravit/launcher/server/authlib/InstallAuthlib.java
index 2db343cb..a5ed38cf 100644
--- a/ServerWrapper/src/main/java/pro/gravit/launcher/server/authlib/InstallAuthlib.java
+++ b/ServerWrapper/src/main/java/pro/gravit/launcher/server/authlib/InstallAuthlib.java
@@ -15,7 +15,7 @@ import java.util.zip.ZipOutputStream;
 
 public class InstallAuthlib {
     private static final Map<String, LibrariesHashFileModifier> modifierMap;
-    private static final String LaunchAuthLibName = "authlib.jar";
+    private static final String tempLaunchAuthLibName = "authlib.jar";
     static {
         modifierMap = new HashMap<>();
         modifierMap.put("META-INF/libraries.list", new LibrariesLstModifier());
@@ -27,32 +27,30 @@ public class InstallAuthlib {
         boolean deleteAuthlibAfterInstall = false;
         InstallAuthlibContext context = new InstallAuthlibContext();
         if(args[0].startsWith("http://") || args[0].startsWith("https://")) {
-            Path tempAuthlib = Paths.get(LaunchAuthLibName);
+            Path tempAuthlib = Paths.get(tempLaunchAuthLibName);
             LogHelper.info("Download %s to %s", args[0], tempAuthlib);
             try(InputStream input = IOHelper.newInput(new URL(args[0]))) {
                 IOHelper.transfer(input, tempAuthlib);
             }
-            context.pathToAuthlib = tempAuthlib;
+            context.pathToAuthlib = tempAuthlib.toAbsolutePath();
             deleteAuthlibAfterInstall = true;
         } else {
-            context.pathToAuthlib = Paths.get(args[0]);
+            context.pathToAuthlib = Paths.get(args[0]).toAbsolutePath();
         }
         if(Files.notExists(context.pathToAuthlib)) {
             throw new FileNotFoundException(context.pathToAuthlib.toString());
         }
-        context.workdir = IOHelper.WORKING_DIR;
         LogHelper.info("Search .jar files in %s", context.workdir.toAbsolutePath());
         IOHelper.walk(context.workdir, new SimpleFileVisitor<>() {
             @Override
             public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) {
-                if (file.getFileName().toString().endsWith(".jar") && !file.getFileName().toString().equals(LaunchAuthLibName)) {
+                if (file.getFileName().toString().endsWith(".jar") && !file.equals(context.pathToAuthlib)) {
                     context.files.add(file);
                 }
                 return FileVisitResult.CONTINUE;
             }
         }, true);
-        context.files.sort(Comparator.comparingInt((Path path) -> - countSlashes(path.toString()))
-                .thenComparing(Comparator.naturalOrder()));
+        context.files.sort(Comparator.comparingInt((Path path) -> - path.getNameCount()));
         LogHelper.info("Search authlib in %d files", context.files.size());
         for(Path path : context.files) {
             boolean foundAuthlib = false;
@@ -218,10 +216,6 @@ public class InstallAuthlib {
         }
     }
 
-    private static int countSlashes(String s) {
-        return (int) s.chars().filter(c -> c == '/').count();
-    }
-
     public static class RepackInfo {
         public Path path;
         public String prefix;