diff --git a/src/js/easymde.js b/src/js/easymde.js
index 096b00a..9b61484 100644
--- a/src/js/easymde.js
+++ b/src/js/easymde.js
@@ -54,6 +54,9 @@ var shortcuts = {
     'toggleHeading1': 'Shift+Alt+1',
     'toggleHeading2': 'Shift+Alt+2',
     'toggleHeading3': 'Shift+Alt+3',
+    'toggleHeading4': 'Shift+Alt+4',
+    'toggleHeading5': 'Shift+Alt+5',
+    'toggleHeading6': 'Shift+Alt+6',
     'cleanBlock': 'Cmd-E',
     'drawImage': 'Cmd-Alt-I',
     'toggleBlockquote': 'Cmd-\'',