diff --git a/py_clob_client/client.py b/py_clob_client/client.py
index e6be3c5..6b612b9 100644
--- a/py_clob_client/client.py
+++ b/py_clob_client/client.py
@@ -516,7 +516,7 @@ def create_order(
 
         neg_risk = (
             options.neg_risk
-            if options and options.neg_risk
+            if options and options.neg_risk is not None
             else self.get_neg_risk(order_args.token_id)
         )
 
@@ -571,7 +571,7 @@ def create_market_order(
 
         neg_risk = (
             options.neg_risk
-            if options and options.neg_risk
+            if options and options.neg_risk is not None
             else self.get_neg_risk(order_args.token_id)
         )