diff --git a/apps/inm/services.py b/apps/inm/services.py
index ee656d10..3f5e9c5e 100644
--- a/apps/inm/services.py
+++ b/apps/inm/services.py
@@ -31,7 +31,7 @@ class InmService:
             in_or_out = -1
             if is_reverse:
                 in_or_out = 1
-            cls.update_mb(instance, 1)
+            cls.update_mb(instance, in_or_out)
             if instance.type == MIO.MIO_TYPE_SALE_OUT:
                 from apps.sam.services import SamService
                 SamService.mio_saleout(instance, is_reverse)