diff --git a/client-runtime/src/main/java/com/microsoft/rest/serializer/FlatteningDeserializer.java b/client-runtime/src/main/java/com/microsoft/rest/serializer/FlatteningDeserializer.java
index f920335b1b6e8..dd7468a728372 100644
--- a/client-runtime/src/main/java/com/microsoft/rest/serializer/FlatteningDeserializer.java
+++ b/client-runtime/src/main/java/com/microsoft/rest/serializer/FlatteningDeserializer.java
@@ -88,6 +88,7 @@ public Object deserialize(JsonParser jp, DeserializationContext ctxt) throws IOE
                 if (value.matches(".+[^\\\\]\\..+")) {
                     String[] values = value.split("((?<!\\\\))\\.");
                     for (String val : values) {
+                        val = val.replace("\\.", ".");
                         node = node.get(val);
                         if (node == null) {
                             break;