diff --git a/Sources/LibzipSwift/ZipArchive.swift b/Sources/LibzipSwift/ZipArchive.swift
index 4366610..f09fec0 100644
--- a/Sources/LibzipSwift/ZipArchive.swift
+++ b/Sources/LibzipSwift/ZipArchive.swift
@@ -10,6 +10,8 @@ import libzip
 
 public final class ZipArchive: ZipErrorHandler {
     private var compressionCallback: ((Double) -> Void)?
+    private var compressionMethod: CompressionMethod = .default
+    private var compressionLevel: CompressionLevel = .fastest
     
     internal var archivePointer: OpaquePointer!
     
@@ -305,6 +307,7 @@ public final class ZipArchive: ZipErrorHandler {
                     var external_fa = entry.externalAttributes.attributes
                     external_fa |= permissionsMask
                     try entry.setExternalAttributes(operatingSystem: .unix, attributes: external_fa)
+                    try entry.setCompression(method: compressionMethod, flags: compressionLevel)
                 }
             }
             return result
@@ -353,6 +356,11 @@ public final class ZipArchive: ZipErrorHandler {
         return false
     }
     
+    public func setCompression(cm: CompressionMethod, cl: CompressionLevel) {
+        compressionMethod = cm
+        compressionLevel = cl
+    }
+    
     /// extract all entries to folder.
     /// - Parameters:
     ///   - dir: the dst folder.
diff --git a/Sources/LibzipSwift/ZipConst.swift b/Sources/LibzipSwift/ZipConst.swift
index 22771ad..32eacc8 100644
--- a/Sources/LibzipSwift/ZipConst.swift
+++ b/Sources/LibzipSwift/ZipConst.swift
@@ -25,6 +25,7 @@ public struct CompressionMethod: RawRepresentable {
     
     public static let `default` = CompressionMethod(rawValue: ZIP_CM_DEFAULT)
     public static let store = CompressionMethod(rawValue: ZIP_CM_STORE)
+    public static let bzip2 = CompressionMethod(rawValue: ZIP_CM_BZIP2)
     public static let deflate = CompressionMethod(rawValue: ZIP_CM_DEFLATE)
     public static let deflate64 = CompressionMethod(rawValue: ZIP_CM_DEFLATE64)
 }