diff --git a/Readme.md b/Readme.md
index 4958a63..5c634d2 100644
--- a/Readme.md
+++ b/Readme.md
@@ -32,7 +32,7 @@ Product p = new Product()
                 description = "test product 8",
                 price = 8.0M
             };
-await wc.PostProduct(p)
+await wc.PostProduct(p);
 
 //Update products
 await wc.UpdateProducts(new Product[] { new Product { id = 128, name = "test 99" } });
@@ -70,4 +70,4 @@ Version History
   3. Implement Order Refund call.
 * v0.1 First working version
   1. Implement only GET method for most REST API calls.
-  2. Supports WooCommerce REST API version 2.
\ No newline at end of file
+  2. Supports WooCommerce REST API version 2.
diff --git a/RestAPI.cs b/RestAPI.cs
index 0fdfdb9..64451d9 100644
--- a/RestAPI.cs
+++ b/RestAPI.cs
@@ -35,7 +35,7 @@ public RestAPI(string url, string key, string secret)//, bool useProxy = false)
         /// <typeparam name="T"></typeparam>
         /// <param name="endpoint"></param>
         /// <param name="method">HEAD, GET, POST, PUT, PATCH, DELETE</param>
-        /// <param name="requestBody"></param>
+        /// <param name="requestBody">If your call doesn't have a body, please pass string.Empty, not null.</param>
         /// <param name="parms"></param>
         /// <returns>json string</returns>
         public async Task<string> SendHttpClientRequest<T>(string endpoint, RequestMethod method, T requestBody, Dictionary<string, string> parms = null)