diff --git a/conf/default.conf.php b/conf/default.conf.php
index c0a80ce958..e09b4dfc37 100644
--- a/conf/default.conf.php
+++ b/conf/default.conf.php
@@ -1154,4 +1154,9 @@ return array(
     '@\.arcconfig$@' => 'js',
   ),
 
+  // Set the default monospaced font style for users who haven't set a custom
+  // style.
+  'style.monospace' => '10px "Menlo", "Consolas", "Monaco", monospace',
+
+
 );
diff --git a/src/applications/people/controller/settings/panels/PhabricatorUserPreferenceSettingsPanelController.php b/src/applications/people/controller/settings/panels/PhabricatorUserPreferenceSettingsPanelController.php
index 1edd725ae1..f650a76008 100644
--- a/src/applications/people/controller/settings/panels/PhabricatorUserPreferenceSettingsPanelController.php
+++ b/src/applications/people/controller/settings/panels/PhabricatorUserPreferenceSettingsPanelController.php
@@ -59,6 +59,9 @@ EXAMPLE;
       ),
       'User Guide: Configuring an External Editor');
 
+    $font_default = PhabricatorEnv::getEnvConfig('style.monospace');
+    $font_default = phutil_escape_html($font_default);
+
     $form = id(new AphrontFormView())
       ->setUser($user)
       ->setAction('/settings/page/preferences/')
@@ -90,8 +93,7 @@ EXAMPLE;
         ->setName($pref_monospaced)
         ->setCaption(
           'Overrides default fonts in tools like Differential. '.
-          '(Default: 10px "Menlo", "Consolas", "Monaco", '.
-          'monospace)')
+          '(Default: '.$font_default.')')
         ->setValue($preferences->getPreference($pref_monospaced)))
       ->appendChild(
         id(new AphrontFormMarkupControl())
diff --git a/src/view/page/PhabricatorStandardPageView.php b/src/view/page/PhabricatorStandardPageView.php
index cdc21e0dcb..ba4ef9fb33 100644
--- a/src/view/page/PhabricatorStandardPageView.php
+++ b/src/view/page/PhabricatorStandardPageView.php
@@ -209,33 +209,31 @@ final class PhabricatorStandardPageView extends AphrontPageView {
     }
 
     $response = CelerityAPI::getStaticResourceResponse();
+
+    $monospaced = PhabricatorEnv::getEnvConfig('style.monospace');
+
+    $request = $this->getRequest();
+    if ($request) {
+      $user = $request->getUser();
+      if ($user) {
+        $monospaced = nonempty(
+          $user->loadPreferences()->getPreference(
+            PhabricatorUserPreferences::PREFERENCE_MONOSPACED),
+          $monospaced);
+      }
+    }
+
     $head =
       '<script type="text/javascript">'.
         $framebust.
         'window.__DEV__=1;'.
       '</script>'.
       $response->renderResourcesOfType('css').
+      '<style type="text/css">'.
+        '.PhabricatorMonospaced { font: '.$monospaced.'; }'.
+      '</style>'.
       $response->renderSingleResource('javelin-magical-init');
 
-    $request = $this->getRequest();
-    if ($request) {
-      $user = $request->getUser();
-      if ($user) {
-        $monospaced = $user->loadPreferences()->getPreference(
-          PhabricatorUserPreferences::PREFERENCE_MONOSPACED
-        );
-
-        if (strlen($monospaced)) {
-          $head .=
-            '<style type="text/css">'.
-            '.PhabricatorMonospaced { font: '.
-            $monospaced.
-            ' !important; }'.
-            '</style>';
-        }
-      }
-    }
-
     return $head;
   }
 
diff --git a/webroot/rsrc/css/application/base/standard-page-view.css b/webroot/rsrc/css/application/base/standard-page-view.css
index 5793d5bac2..2861d69357 100644
--- a/webroot/rsrc/css/application/base/standard-page-view.css
+++ b/webroot/rsrc/css/application/base/standard-page-view.css
@@ -207,11 +207,6 @@ a.handle-disabled {
   background-image: url(/rsrc/image/icon/fatcow/bullet_black.png);
 }
 
-.PhabricatorMonospaced {
-  font-family:        "Menlo", "Consolas", "Monaco", monospace;
-  font-size:          10px;
-}
-
 .aphront-developer-error-callout {
   padding: 2em;
   background: #aa0000;