diff --git a/src/cbor/encoder.cr b/src/cbor/encoder.cr
index c6d436b..92678b4 100644
--- a/src/cbor/encoder.cr
+++ b/src/cbor/encoder.cr
@@ -11,34 +11,7 @@ class CBOR::Encoder
   end
 
   def write(j : JSON::Any)
-    # Test each possible value of JSON::Any
-    case j
-    when .as_bool?
-      write j.as_bool
-    when .as_i?
-      write j.as_i
-    when .as_i64?
-      write j.as_i64
-    when .as_f?
-      write j.as_f
-    when .as_f32?
-      write j.as_f32
-    when .as_s?
-      write j.as_s
-    when .as_a?
-      write j.as_a
-    when .as_h?
-      write j.as_h
-    else
-      # JSON::Any ".as_bool?" function fails.
-      case j.raw
-      when Bool
-        write j.as_bool
-      when Nil
-      else
-        raise "Unknown kind of JSON: #{j.raw}"
-      end
-    end
+    write j.raw
   end
 
   def write(value : Nil | Nil.class, use_undefined : Bool = false)