diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java b/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
index 1247f512..ab0e7afc 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/LaunchServer.java
@@ -105,8 +105,6 @@ public static final class Config extends ConfigObject {
         public final String projectName;
 
         public final String whitelistRejectString;
-
-        public final boolean genMappings;
         public final boolean isUsingWrapper;
         public final boolean isDownloadJava;
 
@@ -150,7 +148,6 @@ private Config(BlockConfigEntry block, Path coredir, LaunchServer server) {
                     block.getEntry("hwidHandlerConfig", BlockConfigEntry.class));
 
             // Set misc config
-            genMappings = block.getEntryValue("proguardPrintMappings", BooleanConfigEntry.class);
             mirrors = block.getEntry("mirrors", ListConfigEntry.class);
             launch4j = new ExeConf(block.getEntry("launch4J", BlockConfigEntry.class));
             buildPostTransform = new PostBuildTransformConf(block.getEntry("buildExtendedOperation", BlockConfigEntry.class), coredir);
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/ProguardConf.java b/LaunchServer/src/main/java/ru/gravit/launchserver/ProguardConf.java
index 29e38b60..d4a52adf 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/ProguardConf.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/ProguardConf.java
@@ -38,7 +38,7 @@ public ProguardConf(LaunchServer srv) {
         words = proguard.resolve("random.pro");
         confStrs = new ArrayList<>();
         prepare(false);
-        if (srv.config.genMappings) confStrs.add("-printmapping \'" + mappings.toFile().getName() + "\'");
+        confStrs.add("-printmapping \'" + mappings.toFile().getName() + "\'");
         confStrs.add("-obfuscationdictionary \'" + words.toFile().getName() + "\'");
         confStrs.add("-injar \'" + srv.dir.toAbsolutePath() + IOHelper.PLATFORM_SEPARATOR + srv.config.binaryName + "-nonObf.jar\'");
         confStrs.add("-outjar \'" + srv.dir.toAbsolutePath() + IOHelper.PLATFORM_SEPARATOR + srv.config.binaryName + "-obfed.jar\'");
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
index 0a449d24..983f5ac7 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/BuildHookManager.java
@@ -154,10 +154,6 @@ public void registerProGuardHook(Transformer hook) {
         POST_PROGUARD_HOOKS.add(hook);
     }
 
-    public boolean isNeedPostProguardHook() {
-        return POST_PROGUARD_HOOKS.size() > 1 || !POST_PROGUARDRUN_HOOKS.isEmpty() || !POST_PROGUARD_BUILDHOOKS.isEmpty() || !proguardNoder.getTransLst().isEmpty();
-    }
-
     public void registerPreHook(BuildHook hook) {
         PRE_HOOKS.add(hook);
     }
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
index 3f713df9..e5a56bb8 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/manangers/NodeTransformer.java
@@ -31,9 +31,9 @@ public NodeTransformer() {
 	public byte[] transform(byte[] input, String classname, JARLauncherBinary data) {
 		ClassReader cr = new ClassReader(input);
 		ClassNode cn = new ClassNode();
-		cr.accept(cn, ClassReader.SKIP_DEBUG);
+		cr.accept(cn, ClassReader.SKIP_DEBUG | ClassReader.SKIP_FRAMES);
 		for (ClassNodeTransformer tr : transLst) tr.transform(cn, classname, data);
-		ClassWriter cw = new SafeClassWriter(data.reader, ClassWriter.COMPUTE_MAXS);
+		ClassWriter cw = new SafeClassWriter(data.reader, ClassWriter.COMPUTE_MAXS | ClassWriter.COMPUTE_FRAMES);
 		cn.accept(cw);
 		return cw.toByteArray();
 	}
diff --git a/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/config.cfg b/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/config.cfg
index 954f8d01..00249256 100644
--- a/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/config.cfg
+++ b/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/config.cfg
@@ -13,9 +13,6 @@ isDownloadJava: false;
 # White list testers
 whitelistRejectString: "Вас нет в белом списке";
 
-# Proguard
-proguardPrintMappings: false;
-
 # Auth handler
 authHandler: "textFile";
 authHandlerConfig: {