diff --git a/ngx_http_hello_world_module.c b/ngx_http_hello_world_module.c
index cebac6c..af8ecab 100644
--- a/ngx_http_hello_world_module.c
+++ b/ngx_http_hello_world_module.c
@@ -112,14 +112,14 @@ static ngx_int_t ngx_http_hello_world_handler(ngx_http_request_t *r)
     out.next = NULL; /* just one buffer */
 
     b->pos = ngx_hello_world; /* first position in memory of the data */
-    b->last = ngx_hello_world + sizeof(ngx_hello_world); /* last position in memory of the data */
+    b->last = ngx_hello_world + sizeof(ngx_hello_world)-1; /* last position in memory of the data */
     b->memory = 1; /* content is in read-only memory */
     b->last_buf = 1; /* there will be no more buffers in the request */
 
     /* Sending the headers for the reply. */
     r->headers_out.status = NGX_HTTP_OK; /* 200 status code */
     /* Get the content length of the body. */
-    r->headers_out.content_length_n = sizeof(ngx_hello_world);
+    r->headers_out.content_length_n = sizeof(ngx_hello_world)-1;
     ngx_http_send_header(r); /* Send the headers */
 
     /* Send the body, and return the status code of the output filter chain. */