diff --git a/l10n_us_nc_hr_payroll/data/rules_2018.xml b/l10n_us_nc_hr_payroll/data/rules_2018.xml
index d73ba291..967c21cc 100755
--- a/l10n_us_nc_hr_payroll/data/rules_2018.xml
+++ b/l10n_us_nc_hr_payroll/data/rules_2018.xml
@@ -17,10 +17,10 @@ ytd += contract.external_wages
 remaining = 7000.0 - ytd
 if remaining <= 0.0:
     result = 0
-elif remaining < categories.GROSS:
+elif remaining < categories.BASIC:
     result = remaining
 else:
-    result = categories.GROSS
+    result = categories.BASIC
         </field>
         <field name="appears_on_payslip" eval="False"/>
     </record>