diff --git a/CHANGELOG b/CHANGELOG
index 52a5fbfa..b77f32fc 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -224,6 +224,11 @@ HISTORY
 
 
   ++ Bugfixes:
+
+  2010-06-30: Simon Goldschmidt
+  * api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
+    netconn_delete)
+
   2010-06-28: Kieran Mansley
   * timers.c remove unportable printing of C function pointers
 
diff --git a/src/api/api_msg.c b/src/api/api_msg.c
index 4e7c4d81..366f5d9a 100644
--- a/src/api/api_msg.c
+++ b/src/api/api_msg.c
@@ -845,6 +845,7 @@ do_delconn(struct api_msg_msg *msg)
         LWIP_ASSERT("already writing or closing", msg->conn->current_msg == NULL &&
           msg->conn->write_offset == 0);
         msg->conn->state = NETCONN_CLOSE;
+        msg->msg.sd.shut = NETCONN_SHUT_RDWR;
         msg->conn->current_msg = msg;
         do_close_internal(msg->conn);
         /* API_EVENT is called inside do_close_internal, before releasing