diff --git a/src/applications/config/check/PhabricatorSetupCheckExtraConfig.php b/src/applications/config/check/PhabricatorSetupCheckExtraConfig.php
index 44455cb203..1482e7d2b1 100644
--- a/src/applications/config/check/PhabricatorSetupCheckExtraConfig.php
+++ b/src/applications/config/check/PhabricatorSetupCheckExtraConfig.php
@@ -65,7 +65,7 @@ final class PhabricatorSetupCheckExtraConfig extends PhabricatorSetupCheck {
       }
 
       $message = $message."\n\n".pht(
-        "This configuration value is defined in in these %d ".
+        "This configuration value is defined in these %d ".
         "configuration source(s): %s.",
         count($found),
         implode(', ', $found));
diff --git a/src/infrastructure/internationalization/PhabricatorBaseEnglishTranslation.php b/src/infrastructure/internationalization/PhabricatorBaseEnglishTranslation.php
index fa809e5a32..3500b991ca 100644
--- a/src/infrastructure/internationalization/PhabricatorBaseEnglishTranslation.php
+++ b/src/infrastructure/internationalization/PhabricatorBaseEnglishTranslation.php
@@ -304,6 +304,14 @@ abstract class PhabricatorBaseEnglishTranslation
       '%d rejection(s)' => array('%d rejection', '%d rejections'),
       '%d update(s)' => array('%d update', '%d updates'),
 
+      'This configuration value is defined in these %d '.
+      'configuration source(s): %s.' => array(
+        'This configuration value is defined in this '.
+        'configuration source: %2$s.',
+        'This configuration value is defined in these %d '.
+        'configuration sources: %s.',
+      ),
+
     );
   }