diff -ruN xrdp-0.9.14-v/vnc/vnc.c xrdp-0.9.14/vnc/vnc.c
--- xrdp-0.9.14-v/vnc/vnc.c	2020-08-26 12:32:22.000000000 +1000
+++ xrdp-0.9.14/vnc/vnc.c	2020-08-31 22:17:02.664465069 +1000
@@ -1423,7 +1423,7 @@
 {
     int error;
     struct vnc_screen_layout layout = {0};
-    int response_code;
+    int response_code = -1;
 
     error = find_matching_extended_rect(v,
                                         rect_is_reply_to_us,