diff --git a/delta/sdk/src/main/scala/ch/epfl/bluebrain/nexus/delta/sdk/permissions/StoragePermissionProvider.scala b/delta/sdk/src/main/scala/ch/epfl/bluebrain/nexus/delta/sdk/permissions/StoragePermissionProvider.scala
index 171ffa7bad..61bfce0214 100644
--- a/delta/sdk/src/main/scala/ch/epfl/bluebrain/nexus/delta/sdk/permissions/StoragePermissionProvider.scala
+++ b/delta/sdk/src/main/scala/ch/epfl/bluebrain/nexus/delta/sdk/permissions/StoragePermissionProvider.scala
@@ -6,6 +6,9 @@ import ch.epfl.bluebrain.nexus.delta.sdk.permissions.model.Permission
 import ch.epfl.bluebrain.nexus.delta.sourcing.model.ProjectRef
 import monix.bio.UIO
 
+/**
+ * Provides the permission a user needs to have in order to access files on this storage
+ */
 trait StoragePermissionProvider {
 
   def permissionFor(id: IdSegmentRef, project: ProjectRef, accessType: AccessType): UIO[Permission]