diff --git a/lib/Lacuna/Cache.pm b/lib/Lacuna/Cache.pm
index 91535f7a..9fd91f9d 100644
--- a/lib/Lacuna/Cache.pm
+++ b/lib/Lacuna/Cache.pm
@@ -112,7 +112,7 @@ sub get {
         $self->clear_memcached;
         return $self->get($namespace, $id, 1);
     }
-    warn "Couldn't get $key from cache because ".$memcached->errstr;
+    warn "Couldn't get $key from cache because [".$memcached->errstr."]";
 }
 
 sub get_and_deserialize {