diff --git a/docs/ftldns/debugging.md b/docs/ftldns/debugging.md
index 4ffb9cf..a13b2b0 100644
--- a/docs/ftldns/debugging.md
+++ b/docs/ftldns/debugging.md
@@ -41,7 +41,7 @@ Once you are used to it, you can skip most of the steps. Debugging *FTL*DNS is q
 4. Configure `gdb` by installing a globally valid initialization file:
 
     ```bash
-    echo "handle SIGHUP nostop SIGPIPE nostop SIGTERM nostop SIG32 nostop SIG34 nostop SIG35 nostop SIG41 nostop" | sudo tee /root/.gdbinit
+    echo "handle SIGHUP nostop SIGPIPE nostop SIGTERM nostop SIG32 nostop SIG33 nostop SIG34 nostop SIG35 nostop SIG36 nostop SIG37 nostop SIG38 nostop SIG39 nostop SIG40 nostop SIG41 nostop" | sudo tee /root/.gdbinit
     ```
 
     You can omit this step, however, you will have to remember to run the quoted line on *every start* of `gdb` in order to properly debug FTL.