diff --git a/selfprivacy_api/graphql/common_types/service.py b/selfprivacy_api/graphql/common_types/service.py
index c9cf50e..fc9f205 100644
--- a/selfprivacy_api/graphql/common_types/service.py
+++ b/selfprivacy_api/graphql/common_types/service.py
@@ -3,14 +3,44 @@ import typing
 import strawberry
 from selfprivacy_api.graphql.common_types.dns import DnsRecord
 
-from selfprivacy_api.graphql.common_types.storage_usage import (
-    StorageUsageInterface,
-    StorageVolume,
-)
 from selfprivacy_api.services import get_service_by_id, get_services_by_location
 from selfprivacy_api.services import Service as ServiceInterface
 from selfprivacy_api.utils.block_devices import BlockDevices
 
+def get_usages(root: "StorageVolume") -> list["StorageUsageInterface"]:
+    """Get usages of a volume"""
+    return [
+        ServiceStorageUsage(
+            service=service_to_graphql_service(service),
+            title=service.get_display_name(),
+            used_space=str(service.get_storage_usage()),
+            volume=get_volume_by_id(service.get_location()),
+        )
+        for service in get_services_by_location(root.name)
+    ]
+
+@strawberry.type
+class StorageVolume:
+    """Stats and basic info about a volume or a system disk."""
+
+    total_space: str
+    free_space: str
+    used_space: str
+    root: bool
+    name: str
+    model: typing.Optional[str]
+    serial: typing.Optional[str]
+    type: str
+    usages: list["StorageUsageInterface"] = strawberry.field(resolver=get_usages)
+
+
+
+@strawberry.interface
+class StorageUsageInterface:
+    used_space: str
+    volume: typing.Optional[StorageVolume]
+    title: str
+
 
 @strawberry.type
 class ServiceStorageUsage(StorageUsageInterface):
diff --git a/selfprivacy_api/graphql/common_types/storage_usage.py b/selfprivacy_api/graphql/common_types/storage_usage.py
deleted file mode 100644
index f45966e..0000000
--- a/selfprivacy_api/graphql/common_types/storage_usage.py
+++ /dev/null
@@ -1,24 +0,0 @@
-import typing
-import strawberry
-
-
-@strawberry.type
-class StorageVolume:
-    """Stats and basic info about a volume or a system disk."""
-
-    total_space: str
-    free_space: str
-    used_space: str
-    root: bool
-    name: str
-    model: typing.Optional[str]
-    serial: typing.Optional[str]
-    type: str
-    usages: list["StorageUsageInterface"]
-
-
-@strawberry.interface
-class StorageUsageInterface:
-    used_space: str
-    volume: typing.Optional[StorageVolume]
-    title: str
diff --git a/selfprivacy_api/graphql/queries/storage.py b/selfprivacy_api/graphql/queries/storage.py
index 73b9a8d..273b6a7 100644
--- a/selfprivacy_api/graphql/queries/storage.py
+++ b/selfprivacy_api/graphql/queries/storage.py
@@ -7,7 +7,7 @@ from selfprivacy_api.graphql.common_types.service import (
     service_to_graphql_service,
     get_volume_by_id,
 )
-from selfprivacy_api.graphql.common_types.storage_usage import (
+from selfprivacy_api.graphql.common_types.service import (
     StorageVolume,
 )
 from selfprivacy_api.services import get_services_by_location
@@ -33,15 +33,6 @@ class Storage:
                 model=volume.model,
                 serial=volume.serial,
                 type=volume.type,
-                usages=[
-                    ServiceStorageUsage(
-                        service=service_to_graphql_service(service),
-                        title=service.get_display_name(),
-                        used_space=str(service.get_storage_usage()),
-                        volume=get_volume_by_id(service.get_location()),
-                    )
-                    for service in get_services_by_location(volume.name)
-                ],
             )
             for volume in BlockDevices().get_block_devices()
         ]