diff --git a/source/net/filebot/cli/ScriptBundle.java b/source/net/filebot/cli/ScriptBundle.java
index 4269c99d..b7ba12e8 100644
--- a/source/net/filebot/cli/ScriptBundle.java
+++ b/source/net/filebot/cli/ScriptBundle.java
@@ -15,9 +15,8 @@ import java.util.Map;
 import java.util.jar.JarEntry;
 import java.util.jar.JarInputStream;
 
-import com.google.common.io.ByteStreams;
-
 import net.filebot.Resource;
+import net.filebot.util.ByteBufferOutputStream;
 
 public class ScriptBundle implements ScriptProvider {
 
@@ -37,16 +36,19 @@ public class ScriptBundle implements ScriptProvider {
 					continue;
 
 				// completely read and verify current jar entry
-				byte[] bytes = ByteStreams.toByteArray(jar);
+				ByteBufferOutputStream buffer = new ByteBufferOutputStream(f.getSize());
+				buffer.transferFully(jar);
+
 				jar.closeEntry();
 
 				// file must be signed
 				Certificate[] certificates = f.getCertificates();
 
-				if (certificates == null || stream(f.getCertificates()).noneMatch(certificate::equals))
+				if (certificates == null || stream(f.getCertificates()).noneMatch(certificate::equals)) {
 					throw new SecurityException(String.format("BAD certificate: %s", Arrays.toString(certificates)));
+				}
 
-				return new String(bytes, UTF_8);
+				return UTF_8.decode(buffer.getByteBuffer()).toString();
 			}
 		}