diff --git a/nanorc b/nanorc
index 5170925..a2c2dab 100644
--- a/nanorc
+++ b/nanorc
@@ -445,6 +445,8 @@ unbind M-\ all
 bind M-N flipnewbuffer all
 # flipconvert
 bind M-C flipconvert insert
+# macformat
+bind M-M macformat writeout
 # browser
 bind M-F browser writeout
 bind M-F browser insert