diff --git a/leakcheck/crypto.py b/leakcheck/crypto.py
index b07d1f0..5db5956 100644
--- a/leakcheck/crypto.py
+++ b/leakcheck/crypto.py
@@ -2,7 +2,6 @@
 # See LICENSE for details.
 
 import sys
-from datetime import datetime
 
 from OpenSSL.crypto import (
     FILETYPE_PEM, TYPE_DSA, Error, PKey, X509, load_privatekey, CRL, Revoked)
@@ -109,15 +108,12 @@
     """
     def check_get_revoked(self):
         """
-        Create a CRL object with 1000 Revoked objects, then call the
+        Create a CRL object with 100 Revoked objects, then call the
         get_revoked method repeatedly.
         """
         crl = CRL()
-        for serial in xrange(1000):
-            revoked = Revoked()
-            revoked.set_serial(str(serial))
-            revoked.set_rev_date(datetime.utcnow().strftime('%Y%m%d%H%M%SZ'))
-            crl.add_revoked(revoked)
+        for i in xrange(100):
+            crl.add_revoked(Revoked())
         for i in xrange(self.iterations):
             crl.get_revoked()