diff --git a/src/generator/lib/__tests__/util_test.py b/src/generator/lib/__tests__/util_test.py
index eb34be7e1a..feea3d096c 100644
--- a/src/generator/lib/__tests__/util_test.py
+++ b/src/generator/lib/__tests__/util_test.py
@@ -104,7 +104,7 @@ class UtilsTest(unittest.TestCase):
         property_name = 'details'
         property_value = schemas[class_name]['properties'][property_name]
         rust_type = to_rust_type(schemas, class_name, property_name, property_value, allow_optionals=True)
-        self.assertEqual(rust_type, 'Option<Vec<HashMap<String, String>>>')
+        self.assertEqual(rust_type, 'Option<Vec<HashMap<String, json::Value>>>')
 
 
 def main():
diff --git a/src/generator/lib/types.py b/src/generator/lib/types.py
index fcf2bbd608..a816886b6d 100644
--- a/src/generator/lib/types.py
+++ b/src/generator/lib/types.py
@@ -30,7 +30,7 @@ RUST_TYPE_MAP = {
     'double': Base("f64"),
     'float': Base("f32"),
     'int32': Base("i32"),
-    'any': Base("String"),  # TODO: Figure out how to handle it. It's 'interface' in Go ...
+    'any': Base("json::Value"),
     'int64': Base("i64"),
     'uint64': Base("u64"),
     'array': Vec(None),