diff --git a/eclass/nas-kernel.eclass b/eclass/nas-kernel.eclass
index 050e7a3..fdbde3b 100644
--- a/eclass/nas-kernel.eclass
+++ b/eclass/nas-kernel.eclass
@@ -374,8 +374,10 @@ nas-kernel_src_unpack() {
 		0|1) nas-kernel_src_prepare ;;
 	esac
 
-	# delete empty directories 
-	find "${S}" -type d -empty -exec rmdir {} \;
+	# delete empty directories
+	pushd "${S}"
+	find . -type d -empty -exec rmdir {} \;
+	popd
 }
 
 nas-kernel_src_prepare() {