diff --git a/resources/sql/patches/20130319.phabricatorfileexplicitupload.sql b/resources/sql/patches/20130319.phabricatorfileexplicitupload.sql
new file mode 100644
index 0000000000..8c956e1212
--- /dev/null
+++ b/resources/sql/patches/20130319.phabricatorfileexplicitupload.sql
@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_file.file
+  ADD isExplicitUpload BOOLEAN DEFAULT TRUE;
diff --git a/src/applications/files/storage/PhabricatorFile.php b/src/applications/files/storage/PhabricatorFile.php
index dcbb1d6153..1a65853aff 100644
--- a/src/applications/files/storage/PhabricatorFile.php
+++ b/src/applications/files/storage/PhabricatorFile.php
@@ -22,6 +22,7 @@ final class PhabricatorFile extends PhabricatorFileDAO
   protected $storageHandle;
 
   protected $ttl;
+  protected $isExplicitUpload = 1;
 
   public function getConfiguration() {
     return array(
diff --git a/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php b/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
index 7a3a96fb7e..9da6587cb5 100644
--- a/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
+++ b/src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php
@@ -1173,6 +1173,11 @@ final class PhabricatorBuiltinPatchList extends PhabricatorSQLPatchList {
         'type'    => 'sql',
         'name'    => $this->getPatchPath('releeph.sql'),
       ),
+      '20130319.phabricatorfileexplicitupload.sql' => array(
+        'type'    => 'sql',
+        'name'    => $this->getPatchPath(
+                       '20130319.phabricatorfileexplicitupload.sql'),
+      ),
     );
   }