diff --git a/src/applications/differential/mail/DifferentialCCWelcomeMail.php b/src/applications/differential/mail/DifferentialCCWelcomeMail.php
index 2dd66816de..004822177a 100644
--- a/src/applications/differential/mail/DifferentialCCWelcomeMail.php
+++ b/src/applications/differential/mail/DifferentialCCWelcomeMail.php
@@ -29,6 +29,7 @@ final class DifferentialCCWelcomeMail extends DifferentialReviewRequestMail {
     $body = array();
 
     $body[] = "{$actor} added you to the CC list for the revision \"{$name}\".";
+    $body[] = null;
 
     $body[] = $this->renderReviewRequestBody();
 
diff --git a/src/applications/differential/mail/DifferentialNewDiffMail.php b/src/applications/differential/mail/DifferentialNewDiffMail.php
index cee44b1ff2..06cd6e45b8 100644
--- a/src/applications/differential/mail/DifferentialNewDiffMail.php
+++ b/src/applications/differential/mail/DifferentialNewDiffMail.php
@@ -44,6 +44,7 @@ final class DifferentialNewDiffMail extends DifferentialReviewRequestMail {
     } else {
       $body[] = "{$actor} updated the revision \"{$name}\".";
     }
+    $body[] = null;
 
     $body[] = $this->renderReviewRequestBody();