diff --git a/resources/celerity/map.php b/resources/celerity/map.php
index 720683c371..b6817f97eb 100644
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -146,7 +146,7 @@ return array(
     'rsrc/css/phui/phui-comment-panel.css' => 'f50152ad',
     'rsrc/css/phui/phui-crumbs-view.css' => '10728aaa',
     'rsrc/css/phui/phui-curtain-view.css' => '2bdaf026',
-    'rsrc/css/phui/phui-document-pro.css' => 'd033e8d5',
+    'rsrc/css/phui/phui-document-pro.css' => 'dd79b5df',
     'rsrc/css/phui/phui-document-summary.css' => '9ca48bdf',
     'rsrc/css/phui/phui-document.css' => 'c4ac41f9',
     'rsrc/css/phui/phui-feed-story.css' => '44a9c8e9',
@@ -814,7 +814,7 @@ return array(
     'phui-curtain-view-css' => '2bdaf026',
     'phui-document-summary-view-css' => '9ca48bdf',
     'phui-document-view-css' => 'c4ac41f9',
-    'phui-document-view-pro-css' => 'd033e8d5',
+    'phui-document-view-pro-css' => 'dd79b5df',
     'phui-feed-story-css' => '44a9c8e9',
     'phui-font-icon-base-css' => '870a7360',
     'phui-fontkit-css' => '1320ed01',
diff --git a/webroot/rsrc/css/phui/phui-document-pro.css b/webroot/rsrc/css/phui/phui-document-pro.css
index 520ae597cb..84dc11601f 100644
--- a/webroot/rsrc/css/phui/phui-document-pro.css
+++ b/webroot/rsrc/css/phui/phui-document-pro.css
@@ -34,6 +34,12 @@
   layout: fixed;
 }
 
+/* Force very wide content, like tables with many columns, to scroll inside
+   the frame. See T13202. */
+.phui-document-content-view {
+  max-width: 800px;
+}
+
 .device-desktop .phui-document-content-inner {
   display: table-row;
 }