diff --git a/src/main/kotlin/com/beust/kobalt/plugin/packaging/JarGenerator.kt b/src/main/kotlin/com/beust/kobalt/plugin/packaging/JarGenerator.kt
index b3c5d77f..0af5bc47 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/packaging/JarGenerator.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/packaging/JarGenerator.kt
@@ -31,7 +31,9 @@ class JarGenerator @Inject constructor(val dependencyManager: DependencyManager)
 
             // Class files
             val files = KFiles.findRecursively(classesDir).map { File(relClassesDir.toFile(), it) }
-            val filesNotExcluded : List<File> = files.filter { ! KFiles.isExcluded(it, jar.excludes) }
+            val filesNotExcluded : List<File> = files.filter {
+                ! KFiles.isExcluded(KFiles.joinDir(project.directory, it.path), jar.excludes)
+            }
             val fileSpecs = arrayListOf<IFileSpec>()
             filesNotExcluded.forEach {
                 fileSpecs.add(IFileSpec.FileSpec(it.path.toString().substring(prefixPath.toString().length + 1)))
diff --git a/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt b/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
index db1c7e30..07b000c4 100644
--- a/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
+++ b/src/main/kotlin/com/beust/kobalt/plugin/packaging/PackagingPlugin.kt
@@ -52,13 +52,12 @@ class PackagingPlugin @Inject constructor(val dependencyManager : DependencyMana
                     val fromPath = directory + "/" + includedFile.from
                     if (File(fromPath).exists()) {
                         spec.toFiles(fromPath).forEach { file ->
-                            File(fromPath, file.path).let {
-                                if (!it.exists()) {
-                                    throw AssertionError("File should exist: $it")
-                                }
+                            val fullFile = File(fromPath, file.path)
+                            if (! fullFile.exists()) {
+                                throw AssertionError("File should exist: $fullFile")
                             }
 
-                            if (!KFiles.isExcluded(file, excludes)) {
+                            if (!KFiles.isExcluded(fullFile, excludes)) {
                                 includedSpecs.add(FileSpec(file.path))
                             } else {
                                 log(2, "Not adding ${file.path} to jar file because it's excluded")