diff --git a/mbuni/ChangeLog b/mbuni/ChangeLog
index 3bad479..52aaf86 100644
--- a/mbuni/ChangeLog
+++ b/mbuni/ChangeLog
@@ -1,3 +1,5 @@
+2009-01-04 P. A. Bagyenda <bagyenda@dsmagic.com>
+	* Minor fix, throttling in MMSC VASP connections
 2009-12-01 P. A. Bagyenda <bagyenda@dsmagic.com>
 	* Change queue location for MM1 notifications
 2009-11-22 P. A. Bagyenda <bagyenda@dsmagic.com>
diff --git a/mbuni/mmsc/mmsproxy.c b/mbuni/mmsc/mmsproxy.c
index c739768..60fe16c 100644
--- a/mbuni/mmsc/mmsproxy.c
+++ b/mbuni/mmsc/mmsproxy.c
@@ -1932,7 +1932,7 @@ static void mm7proxy(void *unused)
 		    else
 			 mms_error_ex("auth", 0, "MM7", NULL, "MMSC: Auth failed/VASP not found in MM7 incoming connection!");		    
 	       } else if (h.vasp->throughput > 0 && 
-			  (tdur = h.vasp->stats.start_time - time(NULL)) > 0 && 
+			  (tdur = time(NULL) - h.vasp->stats.start_time) > 0 && 
 			  h.vasp->stats.mo_pdus/tdur > h.vasp->throughput) { /* throttling error, do not even process the message. */
 		    List *hh = http_create_empty_headers();
 		    http_send_reply(hx->client, 409, hh, /* respond with HTTP Conflict code. */