diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index 02353b32c1..fec9ac13dc 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -8401,6 +8401,7 @@ phutil_register_library_map(array(
       'PhabricatorApplicationTransactionInterface',
       'PhabricatorPolicyInterface',
       'PhabricatorFlaggableInterface',
+      'PhabricatorMentionableInterface',
       'PhabricatorSubscribableInterface',
       'PhabricatorDestructibleInterface',
       'PhabricatorSpacesInterface',
diff --git a/src/applications/passphrase/storage/PassphraseCredential.php b/src/applications/passphrase/storage/PassphraseCredential.php
index c470ea661f..d180fc6b31 100644
--- a/src/applications/passphrase/storage/PassphraseCredential.php
+++ b/src/applications/passphrase/storage/PassphraseCredential.php
@@ -5,6 +5,7 @@ final class PassphraseCredential extends PassphraseDAO
     PhabricatorApplicationTransactionInterface,
     PhabricatorPolicyInterface,
     PhabricatorFlaggableInterface,
+    PhabricatorMentionableInterface,
     PhabricatorSubscribableInterface,
     PhabricatorDestructibleInterface,
     PhabricatorSpacesInterface,