diff --git a/addons/base_import/models/base_import.py b/addons/base_import/models/base_import.py
index 0be10bf6da8..13ce712bb1b 100644
--- a/addons/base_import/models/base_import.py
+++ b/addons/base_import/models/base_import.py
@@ -586,7 +586,7 @@ class Import(models.TransientModel):
             # Check that currency exists
             currency = self.env['res.currency'].search([('symbol', '=', split_value[currency_index].strip())])
             if len(currency):
-                return split_value[currency_index + 1 % 2] if not negative else '-' + split_value[currency_index + 1 % 2]
+                return split_value[(currency_index + 1) % 2] if not negative else '-' + split_value[(currency_index + 1) % 2]
             # Otherwise it is not a float with a currency symbol
             return False