diff --git a/xls2ddl/xls2crud.py b/xls2ddl/xls2crud.py
index 0f02ebe..324f754 100644
--- a/xls2ddl/xls2crud.py
+++ b/xls2ddl/xls2crud.py
@@ -184,7 +184,8 @@ def get_code_desc(field: dict, desc: dict) -> dict:
 def setup_ui_info(field:dict, confidential_fields=[]) ->dict:
 	d = DictObject(**field.copy())
 	if d.length:
-		d.cwidth = d.length if d.length < 18 else 18
+		length = int(d.length)
+		d.cwidth = length if length < 18 else 18
 		if d.cwidth < 4:
 			d.cwidth = 4;
 	else: