diff --git a/src/cbor/encoder.cr b/src/cbor/encoder.cr
index 65e5e63..92678b4 100644
--- a/src/cbor/encoder.cr
+++ b/src/cbor/encoder.cr
@@ -1,3 +1,5 @@
+require "json"
+
 class CBOR::Encoder
   def self.new(io : IO = IO::Memory.new)
     packer = new(io)
@@ -8,6 +10,10 @@ class CBOR::Encoder
   def initialize(@io : IO = IO::Memory.new)
   end
 
+  def write(j : JSON::Any)
+    write j.raw
+  end
+
   def write(value : Nil | Nil.class, use_undefined : Bool = false)
     write(use_undefined ? SimpleValue::Undefined : SimpleValue::Null)
   end