Index: user_relationship_mailer.module
===================================================================
--- user_relationship_mailer.module	(revision 1)
+++ user_relationship_mailer.module	(revision 658)
@@ -86,8 +86,8 @@
   $defaults_function = "user_relationship_mailer_{$op}_default";
   $defaults = $defaults_function();
 
-  $message['subject'] = t(variable_get("user_relationship_mailer_{$op}_subject", $defaults['subject']), $replacements);
-  $message['body']    = t(variable_get("user_relationship_mailer_{$op}_message", $defaults['message']), $replacements);
+  $message['subject'] = t(variable_get("user_relationship_mailer_{$op}_subject", $defaults['subject']), $replacements, $message['language']->language);
+  $message['body']    = t(variable_get("user_relationship_mailer_{$op}_message", $defaults['message']), $replacements, $message['language']->language);
 }