diff --git a/passerelle_imio_extra_fees/models.py b/passerelle_imio_extra_fees/models.py
index d8f235e..fb0a7f4 100644
--- a/passerelle_imio_extra_fees/models.py
+++ b/passerelle_imio_extra_fees/models.py
@@ -21,7 +21,7 @@ from django.utils.translation import ugettext_lazy as _
 
 from passerelle.base.models import BaseResource
 from passerelle.utils.api import endpoint
-
+from decimal import Decimal
 
 class ExtraFees(BaseResource):
     category = _('Misc')