diff --git a/java/jboss-as/jboss-as.conf b/java/jboss-as/jboss-as.conf
index 4570c0533..96b3d740f 100644
--- a/java/jboss-as/jboss-as.conf
+++ b/java/jboss-as/jboss-as.conf
@@ -29,6 +29,10 @@ prefix=opt/jboss
 # install jboss
 jboss_install() {
 	mkdir -p $root/$prefix
-	tar -c * | tar -x -C $root/$prefix
+	# creating an intermediate tar archive and extracting it
+	# afterwards seems to be more fl_wrapper safe
+	local tarfile="../jboss-$ver-install.tar"
+	tar -cpf $tarfile .
+	tar -xpf $tarfile -C $root/$prefix
 }
 hook_add postmake 5 jboss_install