diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/archive/MetaArchive.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/archive/MetaArchive.kt
index 1e531359..69918dd4 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/archive/MetaArchive.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/archive/MetaArchive.kt
@@ -3,28 +3,33 @@ package com.beust.kobalt.archive
 import com.beust.kobalt.Glob
 import com.beust.kobalt.misc.KFiles
 import org.apache.commons.compress.archivers.ArchiveEntry
+import org.apache.commons.compress.archivers.zip.ZipArchiveEntry
 import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream
 import java.io.Closeable
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
 import java.nio.file.Files
+import java.util.jar.Manifest
 import org.apache.commons.compress.archivers.zip.ZipFile as ApacheZipFile
 
 /**
  * Abstraction of a zip/jar/war archive that automatically manages the addition of expanded jar files.
  * Uses ZipArchiveOutputStream for fast inclusion of expanded jar files.
  */
-class MetaArchive(outputFile: File, val manifest: java.util.jar.Manifest?) : Closeable {
+class MetaArchive(outputFile: File, val manifest: Manifest?) : Closeable {
     private val zos = ZipArchiveOutputStream(outputFile).apply {
         encoding = "UTF-8"
     }
 
-    fun addFile(file: File, path: String) {
+    fun addFile(f: File, entryFile: File, path: String?) {
+        val file = f.normalize()
         FileInputStream(file).use { inputStream ->
-            val entry = zos.createArchiveEntry(file, path)
-            maybeAddEntry(entry) {
-                addEntry(entry, inputStream)
+            val actualPath = if (path != null) path + entryFile.path else entryFile.path
+            ZipArchiveEntry(actualPath).let { entry ->
+                maybeAddEntry(entry) {
+                    addEntry(entry, inputStream)
+                }
             }
         }
     }
diff --git a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/JarUtils.kt b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/JarUtils.kt
index 81420a43..5d4aa8cd 100644
--- a/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/JarUtils.kt
+++ b/modules/kobalt-plugin-api/src/main/kotlin/com/beust/kobalt/misc/JarUtils.kt
@@ -55,7 +55,10 @@ class JarUtils {
                             kobaltLog(2, "  Writing contents of jar file $foundFile")
                             metaArchive.addArchive(foundFile)
                         } else {
-                            metaArchive.addFile(File(directory, fromFile.path), foundFile.path)
+                            val fp = foundFile.path
+                            val toPath = File(file.to).normalize().path
+                            val finalPath = if (toPath.isEmpty()) null else (toPath + "/")
+                            metaArchive.addFile(File(directory, fromFile.path), foundFile, finalPath)
                         }
                     } catch(ex: Exception) {
                         onError(ex)