diff --git a/lib/ace/multi_select.js b/lib/ace/multi_select.js
index 2fe9c421..2686dbf1 100644
--- a/lib/ace/multi_select.js
+++ b/lib/ace/multi_select.js
@@ -504,13 +504,11 @@ var Editor = require("./editor").Editor;
         if (!this.inMultiSelectMode)
             return this.insert(text);
 
-        var lines = text.split(this.session.getDocument().getNewLineCharacter());
+        var lines = text.split(/\r\n|\r|\n/);
         var ranges = this.selection.rangeList.ranges;
 
-        if (lines.length > ranges.length) {
-            this.commands.exec("insertstring", this, text);
-            return;
-        }
+        if (lines.length > ranges.length || (lines.length <= 2 || !lines[1]))
+            return this.commands.exec("insertstring", this, text);
 
         for (var i = ranges.length; i--; ) {
             var range = ranges[i];