diff --git a/src/applications/differential/controller/DifferentialRevisionViewController.php b/src/applications/differential/controller/DifferentialRevisionViewController.php
index 2a01005cb7..7a801c72ac 100644
--- a/src/applications/differential/controller/DifferentialRevisionViewController.php
+++ b/src/applications/differential/controller/DifferentialRevisionViewController.php
@@ -913,9 +913,7 @@ final class DifferentialRevisionViewController extends DifferentialController {
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-      $file->attachToObject(
-        $this->getRequest()->getUser(),
-        $revision->getPHID());
+      $file->attachToObject($revision->getPHID());
     unset($unguarded);
 
     return $file->getRedirectResponse();
diff --git a/src/applications/diffusion/controller/DiffusionBrowseFileController.php b/src/applications/diffusion/controller/DiffusionBrowseFileController.php
index 5c208d929d..a8d11431aa 100644
--- a/src/applications/diffusion/controller/DiffusionBrowseFileController.php
+++ b/src/applications/diffusion/controller/DiffusionBrowseFileController.php
@@ -881,7 +881,6 @@ final class DiffusionBrowseFileController extends DiffusionBrowseController {
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
       $file->attachToObject(
-        $this->getRequest()->getUser(),
         $this->getDiffusionRequest()->getRepository()->getPHID());
     unset($unguarded);
 
diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
index 25d6ea8622..101d1e1fce 100644
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -1037,9 +1037,7 @@ final class DiffusionCommitController extends DiffusionController {
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-      $file->attachToObject(
-        $this->getRequest()->getUser(),
-        $drequest->getRepository()->getPHID());
+      $file->attachToObject($drequest->getRepository()->getPHID());
     unset($unguarded);
 
     return $file->getRedirectResponse();
diff --git a/src/applications/files/storage/PhabricatorFile.php b/src/applications/files/storage/PhabricatorFile.php
index a59f1aa95f..4fc4e4761b 100644
--- a/src/applications/files/storage/PhabricatorFile.php
+++ b/src/applications/files/storage/PhabricatorFile.php
@@ -944,11 +944,10 @@ final class PhabricatorFile extends PhabricatorFileDAO
   /**
    * Write the policy edge between this file and some object.
    *
-   * @param PhabricatorUser Acting user.
    * @param phid Object PHID to attach to.
    * @return this
    */
-  public function attachToObject(PhabricatorUser $actor, $phid) {
+  public function attachToObject($phid) {
     $edge_type = PhabricatorEdgeConfig::TYPE_OBJECT_HAS_FILE;
 
     id(new PhabricatorEdgeEditor())
diff --git a/src/applications/files/storage/__tests__/PhabricatorFileTestCase.php b/src/applications/files/storage/__tests__/PhabricatorFileTestCase.php
index fe96c0eb50..b8556c0961 100644
--- a/src/applications/files/storage/__tests__/PhabricatorFileTestCase.php
+++ b/src/applications/files/storage/__tests__/PhabricatorFileTestCase.php
@@ -60,7 +60,7 @@ final class PhabricatorFileTestCase extends PhabricatorTestCase {
     // Attach the file to the object and test that the association opens a
     // policy exception for the non-author viewer.
 
-    $file->attachToObject($author, $object->getPHID());
+    $file->attachToObject($object->getPHID());
 
     // Test the attached file's visibility.
     $this->assertEqual(
diff --git a/src/applications/macro/editor/PhabricatorMacroEditor.php b/src/applications/macro/editor/PhabricatorMacroEditor.php
index 5c0025ee79..09d4c99fb4 100644
--- a/src/applications/macro/editor/PhabricatorMacroEditor.php
+++ b/src/applications/macro/editor/PhabricatorMacroEditor.php
@@ -111,7 +111,7 @@ final class PhabricatorMacroEditor
 
         $new_file = idx($files, $new);
         if ($new_file) {
-          $new_file->attachToObject($this->requireActor(), $object->getPHID());
+          $new_file->attachToObject($object->getPHID());
         }
         break;
     }
diff --git a/src/applications/people/controller/PhabricatorPeopleProfilePictureController.php b/src/applications/people/controller/PhabricatorPeopleProfilePictureController.php
index 55cfb8731c..a36b2b4696 100644
--- a/src/applications/people/controller/PhabricatorPeopleProfilePictureController.php
+++ b/src/applications/people/controller/PhabricatorPeopleProfilePictureController.php
@@ -83,7 +83,7 @@ final class PhabricatorPeopleProfilePictureController
           $user->setProfileImagePHID(null);
         } else {
           $user->setProfileImagePHID($xformed->getPHID());
-          $xformed->attachToObject($viewer, $user->getPHID());
+          $xformed->attachToObject($user->getPHID());
         }
         $user->save();
         return id(new AphrontRedirectResponse())->setURI($profile_uri);
diff --git a/src/applications/phragment/controller/PhragmentPatchController.php b/src/applications/phragment/controller/PhragmentPatchController.php
index 8d7b497f21..5a04403898 100644
--- a/src/applications/phragment/controller/PhragmentPatchController.php
+++ b/src/applications/phragment/controller/PhragmentPatchController.php
@@ -94,7 +94,7 @@ final class PhragmentPatchController extends PhragmentController {
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-      $result->attachToObject($viewer, $version_b->getFragmentPHID());
+      $result->attachToObject($version_b->getFragmentPHID());
     unset($unguarded);
 
     return id(new AphrontRedirectResponse())
diff --git a/src/applications/phragment/controller/PhragmentZIPController.php b/src/applications/phragment/controller/PhragmentZIPController.php
index edc503ee83..574090eede 100644
--- a/src/applications/phragment/controller/PhragmentZIPController.php
+++ b/src/applications/phragment/controller/PhragmentZIPController.php
@@ -114,7 +114,7 @@ final class PhragmentZIPController extends PhragmentController {
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
-      $file->attachToObject($viewer, $fragment->getPHID());
+      $file->attachToObject($fragment->getPHID());
     unset($unguarded);
 
     $return = $fragment->getURI();
diff --git a/src/applications/phragment/storage/PhragmentFragment.php b/src/applications/phragment/storage/PhragmentFragment.php
index 8ea1ae2401..6d8b3f803c 100644
--- a/src/applications/phragment/storage/PhragmentFragment.php
+++ b/src/applications/phragment/storage/PhragmentFragment.php
@@ -119,7 +119,7 @@ final class PhragmentFragment extends PhragmentDAO
       $this->save();
     $this->saveTransaction();
 
-    $file->attachToObject($viewer, $version->getPHID());
+    $file->attachToObject($version->getPHID());
   }
 
   /**