diff --git a/tests/scripts/test021-certificate b/tests/scripts/test021-certificate
index 6da5e155d5..9c74de5f72 100755
--- a/tests/scripts/test021-certificate
+++ b/tests/scripts/test021-certificate
@@ -16,6 +16,11 @@
 echo "running defines.sh"
 . $SRCDIR/scripts/defines.sh
 
+if test "$AC_WITH_TLS" != "yes" ; then
+	echo "test disabled, requires --with-tls"
+	exit
+fi
+
 mkdir -p $TESTDIR $DBDIR1
 
 echo "Running slapadd to build slapd database..."