diff --git a/README.md b/README.md
index bbca80d..0970e93 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ This means that even though the request appeared to be valid something went wron
 - [500](http://httpstatus.es/500) - **Internal Error** - The server encountered an unexpected condition which prevented it from fulfilling the request.
 - [501](http://httpstatus.es/501) - **Not Implemented** - The server does not support the facility required.
 - [502](http://httpstatus.es/502) - **Service temporarily overloaded** - The server cannot process the request due to a high load (whether HTTP servicing or other requests). The implication is that this is a temporary condition which maybe alleviated at other times.
-- [503](http://httpstatus.es/503) - **Gateway timeout** - This is equivalent to Internal Error 500, but in the case of a server which is in turn accessing some other service, this indicates that the respose from the other service did not return within a time that the gateway was prepared to wait. As from the point of view of the clientand the HTTP transaction the other service is hidden within the server, this maybe treated identically to Internal error 500, but has more diagnostic value.
+- [503](http://httpstatus.es/503) - **Service Unavailable** - This is equivalent to Internal Error 500, but in the case of a server which is in turn accessing some other service, this indicates that the respose from the other service did not return within a time that the gateway was prepared to wait. As from the point of view of the clientand the HTTP transaction the other service is hidden within the server, this maybe treated identically to Internal error 500, but has more diagnostic value.
 - [504](http://httpstatus.es/504) - **Gateway Timeout** - Gateway did not receive response from upstream server.
 - [505](http://httpstatus.es/505) - **Http Version Not Supported** - Server does not support the HTTP protocol version.
 - [506](http://httpstatus.es/506) - **Variant Also Negotiates** - Content negotiation for the request results in a circular reference.