diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/ProguardConf.java b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/ProguardConf.java
index 62b11ea6..d4cd0bea 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/ProguardConf.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/ProguardConf.java
@@ -48,6 +48,9 @@ public String[] buildConfig(Path inputJar, Path outputJar)
         confStrs.add("-obfuscationdictionary \'" + words.toFile().getName() + "\'");
         confStrs.add("-injar \'" + inputJar.toAbsolutePath() + "\'");
         confStrs.add("-outjar \'" + outputJar.toAbsolutePath() + "\'");
+        srv.launcherBinary.coreLibs.stream()
+        	.map(e -> "-libraryjars \'" + e.toAbsolutePath().toString() + "\'")
+        	.forEach(confStrs::add);
         confStrs.add("-classobfuscationdictionary \'" + words.toFile().getName() + "\'");
         confStrs.add(readConf());
         return confStrs.toArray(new String[0]);
diff --git a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/tasks/MainBuildTask.java b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/tasks/MainBuildTask.java
index 7583ec79..88a5f602 100644
--- a/LaunchServer/src/main/java/ru/gravit/launchserver/binary/tasks/MainBuildTask.java
+++ b/LaunchServer/src/main/java/ru/gravit/launchserver/binary/tasks/MainBuildTask.java
@@ -117,6 +117,14 @@ public Path process(Path inputJar) throws IOException {
         try (ZipOutputStream output = new ZipOutputStream(IOHelper.newOutput(outputJar));
              JAConfigurator jaConfigurator = new JAConfigurator(AutogenConfig.class.getName(), this)) {
             jaConfigurator.pool.insertClassPath(inputJar.toFile().getAbsolutePath());
+            server.launcherBinary.coreLibs.stream().map(e -> e.toFile().getAbsolutePath())
+            .forEach(t -> {
+				try {
+					jaConfigurator.pool.appendClassPath(t);
+				} catch (NotFoundException e2) {
+					LogHelper.error(e2);
+				}
+			});
             BuildContext context = new BuildContext(output, jaConfigurator, this);
             server.buildHookManager.hook(context);
             jaConfigurator.setAddress(server.config.getAddress());
@@ -129,6 +137,13 @@ public Path process(Path inputJar) throws IOException {
             jaConfigurator.setEnv(server.config.env);
             server.buildHookManager.registerAllClientModuleClass(jaConfigurator);
             reader.getCp().add(new JarFile(inputJar.toFile()));
+            server.launcherBinary.coreLibs.forEach(e -> {
+				try {
+					reader.getCp().add(new JarFile(e.toFile()));
+				} catch (IOException e1) {
+					LogHelper.error(e1);
+				}
+			});
             try (ZipInputStream input = new ZipInputStream(IOHelper.newInput(inputJar))) {
                 ZipEntry e = input.getNextEntry();
                 while (e != null) {
diff --git a/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/proguard.cfg b/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/proguard.cfg
index c08bbda3..3c081430 100644
--- a/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/proguard.cfg
+++ b/LaunchServer/src/main/resources/ru/gravit/launchserver/defaults/proguard.cfg
@@ -1,6 +1,7 @@
 -libraryjars '<java.home>/lib/rt.jar'
 -libraryjars '<java.home>/lib/jce.jar'
 -libraryjars '<java.home>/lib/ext/nashorn.jar'
+-libraryjars '<java.home>/lib/ext/jfxrt.jar'
 -keepattributes SourceFile,LineNumberTable
 -renamesourcefileattribute Source