diff --git a/lib/ace/commands/default_commands.js b/lib/ace/commands/default_commands.js
index d70d0c54..9c663d18 100644
--- a/lib/ace/commands/default_commands.js
+++ b/lib/ace/commands/default_commands.js
@@ -393,7 +393,7 @@ exports.commands = [{
     exec: function(editor) { editor.moveLinesDown(); }
 }, {
     name: "del",
-    bindKey: bindKey("Delete", "Delete|Ctrl-D"),
+    bindKey: bindKey("Delete", "Delete|Ctrl-D|Shift-Delete"),
     exec: function(editor) { editor.remove("right"); },
     multiSelectAction: "forEach"
 }, {
@@ -406,14 +406,11 @@ exports.commands = [{
     multiSelectAction: "forEach"
 }, {
     name: "cut_or_delete",
-    bindKey: bindKey(
-        "Shift-Delete",
-        "Shift-Delete"
-    ),
+    bindKey: bindKey("Shift-Delete", null),
     exec: function(editor) { 
-        if( editor.selection.isEmpty() ){
+        if (editor.selection.isEmpty()) {
             editor.remove("left");
-        }else{
+        } else {
             return false;
         }
     },