diff --git a/Implab/Formats/JSON/StringTranslator.cs b/Implab/Formats/JSON/StringTranslator.cs
--- a/Implab/Formats/JSON/StringTranslator.cs
+++ b/Implab/Formats/JSON/StringTranslator.cs
@@ -16,8 +16,8 @@ namespace Implab.Formats.JSON {
         static readonly int[] _hexMap;
 
         static StringTranslator() {
-            var chars = new char[] { 'b', 'f', 't', 'r', 'n', '\\', '/' };
-            var vals = new char[] { '\b', '\f', '\t', '\r', '\n', '\\', '/' };
+            var chars = new char[] { 'b', 'f', 't', 'r', 'n', '\\', '/', '"' };
+            var vals = new char[] { '\b', '\f', '\t', '\r', '\n', '\\', '/', '"' };
 
             _escMap = new char[chars.Max() + 1];