diff --git a/servers/X509AccountsServer/X509AccountsServer.py b/servers/X509AccountsServer/X509AccountsServer.py
index a504caec..368bd8ea 100755
--- a/servers/X509AccountsServer/X509AccountsServer.py
+++ b/servers/X509AccountsServer/X509AccountsServer.py
@@ -144,7 +144,9 @@ class X509AccountsServer(
         virtualServerId = context.getVar('applicationId')
         virtualServer = self.getVirtualServer(virtualServerId)
         if not virtualServer.objectsBySerial.has_key(serial):
-            raise faults.WrongX509Serial(serial)
+            serial = serial.lstrip('0')
+            if not virtualServer.objectsBySerial.has_key(serial):
+                raise faults.WrongX509Serial(serial)
         object = virtualServer.objectsBySerial[serial]
         identitiesProxy = getProxy(object.identityId)
         return [identitiesProxy.getUserToken(object.identityId),