diff --git a/geant_service_orchestrator/products/product_types/device.py b/geant_service_orchestrator/products/product_types/device.py
index fc7ae91960c3d9fa45bfbc0047bcf4770df2dba9..a630d2b3378ee2b37b428a239a8e05ddc53c7b42 100644
--- a/geant_service_orchestrator/products/product_types/device.py
+++ b/geant_service_orchestrator/products/product_types/device.py
@@ -7,11 +7,13 @@ from geant_service_orchestrator.products.product_blocks.device \
 
 class DeviceType(strEnum):
     router = "router"
-    switch= "switch"
+    switch = "switch"
+
 
 class DeviceVendor(strEnum):
     Juniper = "juniper"
-    Newvendor= "newvendor"
+    Newvendor = "newvendor"
+
 
 class DeviceInactive(SubscriptionModel, is_base=True):
     device_type: DeviceType
@@ -19,7 +21,8 @@ class DeviceInactive(SubscriptionModel, is_base=True):
     device: DeviceBlockInactive
 
 
-class DeviceProvisioning(DeviceInactive, lifecycle=[SubscriptionLifecycle.PROVISIONING]):
+class DeviceProvisioning(DeviceInactive,
+                         lifecycle=[SubscriptionLifecycle.PROVISIONING]):
     device_type: DeviceType
     device_vendor: DeviceVendor
     device: DeviceBlockProvisioning