diff --git a/README.md b/README.md
index 1aeccc8..fda3f1d 100644
--- a/README.md
+++ b/README.md
@@ -141,11 +141,15 @@ encrypt all files beneath it.
 
 Also note that the pattern `dir/*` does not match files under
 sub-directories of dir/.  To encrypt an entire sub-tree dir/, place the
-following in dir/.gitattributes:
+following in `dir/.gitattributes`:
 
     * filter=git-crypt diff=git-crypt
     .gitattributes !filter !diff
 
+or in your root `.gitattributes`:
+
+    dir/**/* filter=git-crypt diff=git-crypt
+
 The second pattern is essential for ensuring that .gitattributes itself
 is not encrypted.