diff --git a/README.md b/README.md
index 16fe92d..f906780 100644
--- a/README.md
+++ b/README.md
@@ -81,6 +81,10 @@ Modern modesets (more stable, more compatible, faster):
  -5          -f 2 -e 2 --auto-ttl --reverse-frag --max-payload (this is the default)
  -6          -f 2 -e 2 --wrong-seq --reverse-frag --max-payload
  -7          -f 2 -e 2 --wrong-chksum --reverse-frag --max-payload
+ -8          -f 2 -e 2 --wrong-seq --wrong-chksum --reverse-frag --max-payload
+ -9          -f 2 -e 2 --wrong-seq --wrong-chksum --reverse-frag --max-payload -q
+
+ Note: combination of --wrong-seq and --wrong-chksum generates two different fake packets.
 ```
 
 To check if your ISP's DPI could be circumvented, first make sure that your provider does not poison DNS answers by enabling "Secure DNS (DNS over HTTPS)" option in your browser.
diff --git a/src/goodbyedpi.c b/src/goodbyedpi.c
index fd912b0..d396e8c 100644
--- a/src/goodbyedpi.c
+++ b/src/goodbyedpi.c
@@ -648,7 +648,7 @@ int main(int argc, char *argv[]) {
         max_payload_size = 1200;
     }
 
-    while ((opt = getopt_long(argc, argv, "1234567pqrsaf:e:mwk:n", long_options, NULL)) != -1) {
+    while ((opt = getopt_long(argc, argv, "123456789pqrsaf:e:mwk:n", long_options, NULL)) != -1) {
         switch (opt) {
             case '1':
                 do_passivedpi = do_host = do_host_removespace \
@@ -689,6 +689,12 @@ int main(int argc, char *argv[]) {
                 do_wrong_seq = 1;
                 max_payload_size = 1200;
                 break;
+            case '9': // +7+8
+                do_block_quic = 1;
+                // fall through
+            case '8': // +7
+                do_wrong_seq = 1;
+                // fall through
             case '7':
                 do_fragment_http = do_fragment_https = 1;
                 do_reverse_frag = do_native_frag = 1;
@@ -961,6 +967,9 @@ int main(int argc, char *argv[]) {
                 " -5          -f 2 -e 2 --auto-ttl --reverse-frag --max-payload (this is the default)\n"
                 " -6          -f 2 -e 2 --wrong-seq --reverse-frag --max-payload\n"
                 " -7          -f 2 -e 2 --wrong-chksum --reverse-frag --max-payload\n"
+                " -8          -f 2 -e 2 --wrong-seq --wrong-chksum --reverse-frag --max-payload\n"
+                " -9          -f 2 -e 2 --wrong-seq --wrong-chksum --reverse-frag --max-payload -q\n\n"
+                "Note: combination of --wrong-seq and --wrong-chksum generates two different fake packets.\n"
                 );
                 exit(EXIT_FAILURE);
         }