diff --git a/lib/ace/commands/default_commands.js b/lib/ace/commands/default_commands.js
index 9b300747..7a40b316 100644
--- a/lib/ace/commands/default_commands.js
+++ b/lib/ace/commands/default_commands.js
@@ -152,7 +152,7 @@ canon.addCommand({
 });
 canon.addCommand({
     name: "selecttostart",
-    bindKey: bindKey("Alt-Shift-Up", "Command-Shift-Up"),
+    bindKey: bindKey("Ctrl-Shift-Home|Alt-Shift-Up", "Command-Shift-Up"),
     exec: function(env, args, request) { env.editor.getSelection().selectFileStart(); }
 });
 canon.addCommand({
@@ -182,7 +182,7 @@ canon.addCommand({
 });
 canon.addCommand({
     name: "selecttoend",
-    bindKey: bindKey("Alt-Shift-Down", "Command-Shift-Down"),
+    bindKey: bindKey("Ctrl-Shift-End|Alt-Shift-Down", "Command-Shift-Down"),
     exec: function(env, args, request) { env.editor.getSelection().selectFileEnd(); }
 });
 canon.addCommand({