diff --git a/readline-8.1-posix-signals.patch b/readline-8.1-posix-signals.patch
new file mode 100644
index 0000000..7fc40f1
--- /dev/null
+++ b/readline-8.1-posix-signals.patch
@@ -0,0 +1,14 @@
+diff -rupN readline-8.1/signals.c readline-8.1-new/signals.c
+--- readline-8.1/signals.c	2020-08-06 22:30:02.000000000 +0200
++++ readline-8.1-new/signals.c	2021-01-09 10:58:27.861297748 +0100
+@@ -266,8 +266,10 @@ _rl_handle_signal (int sig)
+     case SIGQUIT:
+ #endif
+ 
++#if defined (HAVE_POSIX_SIGNALS)
+       if (block_sig)
+ 	sigprocmask (SIG_BLOCK, &set, &oset);
++#endif
+ 
+       rl_echo_signal_char (sig);
+       rl_cleanup_after_signal ();