diff --git a/resources/celerity/map.php b/resources/celerity/map.php
index 97a2fd8d94..e98fe72a2f 100644
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -148,7 +148,7 @@ return array(
     'rsrc/css/phui/phui-tag-view.css' => '295d81c4',
     'rsrc/css/phui/phui-text.css' => '23e9b4b7',
     'rsrc/css/phui/phui-timeline-view.css' => '23fe340a',
-    'rsrc/css/phui/phui-workboard-view.css' => 'bf70dd2e',
+    'rsrc/css/phui/phui-workboard-view.css' => '84f2c272',
     'rsrc/css/phui/phui-workpanel-view.css' => '97b69459',
     'rsrc/css/sprite-actions.css' => '969ad0e5',
     'rsrc/css/sprite-apps-large.css' => '5abf49e9',
@@ -763,7 +763,7 @@ return array(
     'phui-tag-view-css' => '295d81c4',
     'phui-text-css' => '23e9b4b7',
     'phui-timeline-view-css' => '23fe340a',
-    'phui-workboard-view-css' => 'bf70dd2e',
+    'phui-workboard-view-css' => '84f2c272',
     'phui-workpanel-view-css' => '97b69459',
     'policy-css' => '957ea14c',
     'policy-edit-css' => '05cca26a',
diff --git a/src/applications/project/controller/PhabricatorProjectBoardViewController.php b/src/applications/project/controller/PhabricatorProjectBoardViewController.php
index b127b12f45..a6976197c7 100644
--- a/src/applications/project/controller/PhabricatorProjectBoardViewController.php
+++ b/src/applications/project/controller/PhabricatorProjectBoardViewController.php
@@ -193,6 +193,7 @@ final class PhabricatorProjectBoardViewController
 
     $board_box = id(new PHUIBoxView())
       ->appendChild($board)
+      ->addClass('project-board-wrapper')
       ->addMargin(PHUI::MARGIN_LARGE);
 
     return $this->buildApplicationPage(
diff --git a/webroot/rsrc/css/phui/phui-workboard-view.css b/webroot/rsrc/css/phui/phui-workboard-view.css
index 31ee3e5ca3..280eb5394f 100644
--- a/webroot/rsrc/css/phui/phui-workboard-view.css
+++ b/webroot/rsrc/css/phui/phui-workboard-view.css
@@ -67,3 +67,8 @@
   width: 35px;
   margin: 0 3px;
 }
+
+.device-phone .project-board-wrapper {
+  margin-left: 0;
+  margin-right: 0;
+}