diff --git a/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java b/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
index e597a3e3..dea50c57 100644
--- a/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
+++ b/Launcher/src/main/java/ru/gravit/launcher/client/ClientLauncher.java
@@ -9,6 +9,7 @@
 import ru.gravit.launcher.hasher.HashedDir;
 import ru.gravit.launcher.profiles.ClientProfile;
 import ru.gravit.launcher.profiles.PlayerProfile;
+import ru.gravit.launcher.request.Request;
 import ru.gravit.launcher.request.update.LegacyLauncherRequest;
 import ru.gravit.launcher.serialize.HInput;
 import ru.gravit.launcher.serialize.HOutput;
@@ -80,6 +81,8 @@ public static final class Params extends StreamObject {
         @LauncherAPI
         public final int height;
         private final byte[] launcherDigest;
+        @LauncherAPI
+        public final long session;
 
         @LauncherAPI
         public Params(byte[] launcherDigest, Path assetDir, Path clientDir, PlayerProfile pp, String accessToken,
@@ -100,11 +103,13 @@ public Params(byte[] launcherDigest, Path assetDir, Path clientDir, PlayerProfil
             this.ram = ram;
             this.width = width;
             this.height = height;
+            this.session = Request.getSession();
         }
 
         @LauncherAPI
         public Params(HInput input) throws Exception {
             launcherDigest = input.readByteArray(0);
+            session = input.readLong();
             // Client paths
             assetDir = IOHelper.toPath(input.readString(0));
             clientDir = IOHelper.toPath(input.readString(0));
@@ -128,6 +133,7 @@ public Params(HInput input) throws Exception {
         @Override
         public void write(HOutput output) throws IOException {
             output.writeByteArray(launcherDigest, 0);
+            output.writeLong(session);
             // Client paths
             output.writeString(assetDir.toString(), 0);
             output.writeString(clientDir.toString(), 0);
@@ -443,6 +449,7 @@ public static void main(String... args) throws Throwable {
             return;
         }
         Launcher.profile = profile;
+        Request.setSession(params.session);
         Launcher.modulesManager.initModules();
         // Verify ClientLauncher sign and classpath
         LogHelper.debug("Verifying ClientLauncher sign and classpath");
diff --git a/LauncherAPI/src/main/java/ru/gravit/launcher/request/Request.java b/LauncherAPI/src/main/java/ru/gravit/launcher/request/Request.java
index 405235d4..b184fc5e 100644
--- a/LauncherAPI/src/main/java/ru/gravit/launcher/request/Request.java
+++ b/LauncherAPI/src/main/java/ru/gravit/launcher/request/Request.java
@@ -13,7 +13,15 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 
 public abstract class Request<R> {
-    private static final long session = SecurityHelper.secureRandom.nextLong();
+    private static long session = SecurityHelper.secureRandom.nextLong();
+
+    public static void setSession(long session) {
+        Request.session = session;
+    }
+    public static long getSession()
+    {
+        return Request.session;
+    }
 
     @LauncherAPI
     public static void requestError(String message) throws RequestException {