diff --git a/src/main/java/com/github/oohira/intercom/Intercom.java b/src/main/java/com/github/oohira/intercom/Intercom.java
index 1bf593d..5719997 100644
--- a/src/main/java/com/github/oohira/intercom/Intercom.java
+++ b/src/main/java/com/github/oohira/intercom/Intercom.java
@@ -534,7 +534,7 @@ private String send(final String url, final String method, final String body) th
             if (method.equals("POST") || method.equals("PUT") || method.equals("DELETE")) {
                 http.setDoOutput(true);
                 http.setRequestProperty("Content-Type", "application/json");
-                http.setRequestProperty("Content-Length", String.valueOf(body));
+                //NOTE: Content-Length is automatically set by Java HTTP library.
             }
             http.connect();