diff --git a/mnemo/lib/Api.php b/mnemo/lib/Api.php
index ab94c1a3736..fc730562030 100644
--- a/mnemo/lib/Api.php
+++ b/mnemo/lib/Api.php
@@ -353,7 +353,7 @@ public function export($uid, $contentType, array $options = array())
             return $storage->toASNote($memo, $options);
         }
 
-        throw new Mnemo_Exception(sprintf(_("Unsupported Content-Type: %s"),$contentType));
+        throw new Mnemo_Exception(sprintf(_("Unsupported Content-Type: %s"), $contentType));
     }
 
     /**