diff --git a/ArcFormats/Unity/ArcUnityFS.cs b/ArcFormats/Unity/ArcUnityFS.cs
index 8b4c6bed..45a421d2 100644
--- a/ArcFormats/Unity/ArcUnityFS.cs
+++ b/ArcFormats/Unity/ArcUnityFS.cs
@@ -87,6 +87,7 @@ namespace GameRes.Formats.Unity
                 case 1:
                     index_data = UnpackLzma (packed, index_size);
                     break;
+                case 2:
                 case 3:
                     index_data = new byte[index_size];
                     Lz4Compressor.DecompressBlock (packed, packed.Length, index_data, index_data.Length);
diff --git a/ArcFormats/Unity/BundleStream.cs b/ArcFormats/Unity/BundleStream.cs
index 4483d699..fae4ff7e 100644
--- a/ArcFormats/Unity/BundleStream.cs
+++ b/ArcFormats/Unity/BundleStream.cs
@@ -118,7 +118,7 @@ namespace GameRes.Formats.Unity
                 m_packed = new byte[segment.PackedSize];
             int packed_size = m_input.Read (m_packed, 0, (int)segment.PackedSize);
             var output = PrepareBuffer (segment.UnpackedSize);
-            if (3 == method)
+            if (3 == method || 2 == method)
                 m_buffer_len = Lz4Compressor.DecompressBlock (m_packed, packed_size, output, (int)segment.UnpackedSize);
             else
                 throw new NotImplementedException ("Not supported Unity asset bundle compression.");