diff --git a/eosfactory/core/account.py b/eosfactory/core/account.py
index 782de138..40c13573 100644
--- a/eosfactory/core/account.py
+++ b/eosfactory/core/account.py
@@ -126,11 +126,12 @@ def __init__(
             expiration_sec=None, 
             skip_sign=0, dont_broadcast=0, force_unique=0,
             max_cpu_usage=0, max_net_usage=0,
-            ref_block=None):
+            ref_block=None,
+            delay_sec=0):
             
         cleos_sys.SystemNewaccount.__init__(
             self, creator, name, owner_key, active_key,
             stake_net, stake_cpu, permission, buy_ram_kbytes, buy_ram,
             transfer, expiration_sec, skip_sign, dont_broadcast, force_unique,
-            max_cpu_usage, max_net_usage, ref_block, is_verbose=False)
+            max_cpu_usage, max_net_usage, ref_block, delay_sec, is_verbose=False)