diff --git a/Readme.rst b/Readme.rst
index 4789179..1e60537 100644
--- a/Readme.rst
+++ b/Readme.rst
@@ -23,6 +23,9 @@ In other words::
 
     sudo git clone https://github.com/scopatz/nanorc.git /usr/share/nano-syntax-highlighting/
 
+**NOTE**: \< and \> are regular character escapes on macOS. The bug's fixed in Nano, but this might be a problem
+if you are using an older version. If this is the case, replace them respectively with [[:<:]] and [[:>:]].
+This is reported in `issue 52 <https://github.com/scopatz/nanorc/issues/52>`_
 
 2. Configure ``nano``
 ~~~~~~~~~