diff --git a/lib/editor/tinymce/plugins/dragmath/js/dragmath.js b/lib/editor/tinymce/plugins/dragmath/js/dragmath.js
index 8526663544e..c9c24f601c7 100644
--- a/lib/editor/tinymce/plugins/dragmath/js/dragmath.js
+++ b/lib/editor/tinymce/plugins/dragmath/js/dragmath.js
@@ -1,31 +1,34 @@
-tinyMCEPopup.requireLangPack();
-
-var DragMathDialog = {
-		init : function(ed) {
-		
-		},
-		
-	
-
-	insert : function(file, title) {
-		
-	    var ed = tinyMCEPopup.editor;
-		var mathExpression = document.dragmath.getMathExpression();
-	    //
-	    // TBD any massaging needed here?
-	    //
-	    var text = mathExpression;
-	    //
-	    // Escape the expression
-	    //
-	    var text = '$$' + text + '$$';
-	    ed.execCommand('mceInsertContent', false, text);
-
-		tinyMCEPopup.close();
-	}
-
-	
-	
-};
-
-tinyMCEPopup.onInit.add(DragMathDialog.init, DragMathDialog);
+tinyMCEPopup.requireLangPack();
+
+var DragMathDialog = {
+		init : function(ed) {
+		
+		},
+		
+	
+
+	insert : function(file, title) {
+		
+	    var ed = tinyMCEPopup.editor;
+		var mathExpression = document.dragmath.getMathExpression();
+	    //
+	    // TBD any massaging needed here?
+	    //
+	    var text = mathExpression;
+	    // convert < and > to entities
+	    text = text.replace('<', '&lt;');
+	    text = text.replace('>', '&gt;');
+	    //
+	    // Escape the expression
+	    //
+	    text = '$$' + text + '$$';
+	    ed.execCommand('mceInsertContent', false, text);
+
+		tinyMCEPopup.close();
+	}
+
+	
+	
+};
+
+tinyMCEPopup.onInit.add(DragMathDialog.init, DragMathDialog);