diff --git a/src/main/java/io/github/ashwith/flutter/FlutterElement.java b/src/main/java/io/github/ashwith/flutter/FlutterElement.java
index c38668d..2d04323 100644
--- a/src/main/java/io/github/ashwith/flutter/FlutterElement.java
+++ b/src/main/java/io/github/ashwith/flutter/FlutterElement.java
@@ -51,6 +51,8 @@ public String serialize(final Map<String, Object> rawMap) {
                         tempMap.put(key, new JsonPrimitive(String.valueOf(value)));
                     } else if (value instanceof JsonElement) {
                         tempMap.put(key, value);
+                    } else if(value instanceof Map<String, Object>) {
+                        tempMap.put(key, gson.toJson(value));
                     } else {
                         tempMap.put(key, localInstance);
                     }