diff --git a/project_report/wizard/project_create_expenses.py b/project_report/wizard/project_create_expenses.py
index db60c65..c4c894c 100644
--- a/project_report/wizard/project_create_expenses.py
+++ b/project_report/wizard/project_create_expenses.py
@@ -63,8 +63,8 @@ class ProjectCreateExpense(models.TransientModel):
     def action_create_project_expense(self):
         expenses_amt = self.expenses_amt
         if self.expenses_amt > 0:
-            expenses_amt = self.expense_amount * -1
-        if self.expenses_amt == 0:
+            expenses_amt = expenses_amount * -1
+        if expenses_amt == 0:
             raise ValidationError(_("Amount shoud not be zero"))
         analytic = self.env['account.analytic.line'].create({
             'project_id': False,