diff --git a/ereuse_devicehub/resources/device/models.py b/ereuse_devicehub/resources/device/models.py
index 255f57c5..8a0a0120 100644
--- a/ereuse_devicehub/resources/device/models.py
+++ b/ereuse_devicehub/resources/device/models.py
@@ -124,6 +124,7 @@ class Device(Thing):
     allocated = db.Column(Boolean, default=False)
     allocated.comment = "device is allocated or not."
     code = db.Column(db.CIText(), nullable=True, unique=True, default=create_code)
+    code.comment = "device have a unique code."
 
     _NON_PHYSICAL_PROPS = {
         'id',
diff --git a/ereuse_devicehub/resources/device/schemas.py b/ereuse_devicehub/resources/device/schemas.py
index 706b7e03..4fc818ea 100644
--- a/ereuse_devicehub/resources/device/schemas.py
+++ b/ereuse_devicehub/resources/device/schemas.py
@@ -66,6 +66,7 @@ class Device(Thing):
     sku = SanitizedStr(description=m.Device.sku.comment)
     image = URL(description=m.Device.image.comment)
     allocated = Boolean(description=m.Device.allocated.comment)
+    code = SanitizedStr(description=m.Device.code.comment)
 
     @pre_load
     def from_actions_to_actions_one(self, data: dict):