diff --git a/HACKING b/HACKING
index 71dac9b7..5da8e66c 100644
--- a/HACKING
+++ b/HACKING
@@ -10,3 +10,4 @@ libssh2 source code style guide:
      }
 
  - keep source lines shorter than 80 columns
+ - See libssh2-style.el for how to achieve this within Emacs