diff --git a/src/applications/transactions/controller/PhabricatorApplicationTransactionCommentHistoryController.php b/src/applications/transactions/controller/PhabricatorApplicationTransactionCommentHistoryController.php
index 40d34ca2bb..f30c89f926 100644
--- a/src/applications/transactions/controller/PhabricatorApplicationTransactionCommentHistoryController.php
+++ b/src/applications/transactions/controller/PhabricatorApplicationTransactionCommentHistoryController.php
@@ -73,6 +73,7 @@ final class PhabricatorApplicationTransactionCommentHistoryController
     $dialog = id(new AphrontDialogView())
       ->setUser($user)
       ->setWidth(AphrontDialogView::WIDTH_FULL)
+      ->setFlush(true)
       ->setTitle(pht('Comment History'));
 
     $dialog->appendChild($view);
diff --git a/src/applications/transactions/controller/PhabricatorApplicationTransactionDetailController.php b/src/applications/transactions/controller/PhabricatorApplicationTransactionDetailController.php
index 6b3a657470..eec7585b7e 100644
--- a/src/applications/transactions/controller/PhabricatorApplicationTransactionDetailController.php
+++ b/src/applications/transactions/controller/PhabricatorApplicationTransactionDetailController.php
@@ -28,6 +28,7 @@ final class PhabricatorApplicationTransactionDetailController
       ->setUser($viewer)
       ->setTitle(pht('Change Details'))
       ->setWidth(AphrontDialogView::WIDTH_FULL)
+      ->setFlush(true)
       ->appendChild($details)
       ->addCancelButton($cancel_uri);