diff --git a/phpBB/common.php b/phpBB/common.php
index 083c31bb0e..4670eab104 100644
--- a/phpBB/common.php
+++ b/phpBB/common.php
@@ -220,7 +220,7 @@ while ( $row = $db->sql_fetchrow($result) )
 
 if (file_exists('install') || file_exists('contrib'))
 {
-	message_die(GENERAL_MESSAGE, 'Please ensure both the install/ and contrib/ directories are deleted');
+	message_die(GENERAL_MESSAGE, 'Please_remove_install_contrib');
 }
 
 //
diff --git a/phpBB/language/lang_english/lang_main.php b/phpBB/language/lang_english/lang_main.php
index d104025d32..ae48c03ef8 100644
--- a/phpBB/language/lang_english/lang_main.php
+++ b/phpBB/language/lang_english/lang_main.php
@@ -1015,6 +1015,7 @@ $lang['A_critical_error'] = 'A Critical Error Occurred';
 
 $lang['Admin_reauthenticate'] = 'To administer the board you must re-authenticate yourself.';
 $lang['Login_attempts_exceeded'] = 'The maximum number of %s login attempts has been exceeded. You are not allowed to login for the next %s minutes.';
+$lang['Please_remove_install_contrib'] = 'Please ensure both the install/ and contrib/ directories are deleted';
 
 //
 // That's all, Folks!