diff --git a/scripts/export_market/export.py b/scripts/export_market/export.py
index 7f60a9a..4344c66 100644
--- a/scripts/export_market/export.py
+++ b/scripts/export_market/export.py
@@ -26,7 +26,7 @@ stat = {
     ]
 }
 
-EMPTY_ADDRESS = '0x0000000000000000000000000000000000000000'
+EMPTY_ADDRESS = '0x0000000000000000000000000000000000000000'.lower()
 MERCHANT_ADDRESS = '0x14ea40648fc8c1781d19363f5b9cc9a877ac2469'.lower()
 
 merchant_box = {}