diff --git a/bin/tests/system/upforwd/clean.sh b/bin/tests/system/upforwd/clean.sh
index a37ac63c6c..4eba902185 100644
--- a/bin/tests/system/upforwd/clean.sh
+++ b/bin/tests/system/upforwd/clean.sh
@@ -15,13 +15,14 @@
 # NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 # WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
-# $Id: clean.sh,v 1.1 2000/09/13 07:41:12 marka Exp $
+# $Id: clean.sh,v 1.2 2000/09/13 07:44:52 marka Exp $
 
 #
 # Clean up after zone transfer tests.
 #
 
 rm -f dig.out.ns1 dig.out.ns2 dig.out.ns1.after ns1/*.jnl ns2/*.jnl ns1/*.db
+rm -f ns2/*.bk