1diff -Nur a/tests/regression/client/client.c b/tests/regression/client/client.c
2--- a/tests/regression/client/client.c 2015-12-25 17:39:45.000000000 +0000
3+++ b/tests/regression/client/client.c 2022-03-29 19:33:18.646398117 +0100
4@@ -27,6 +27,7 @@
5 #include <syscall.h>
6 #include <sys/epoll.h>
7 #include <sys/types.h>
8+#include <sys/socket.h>
9 #include <sys/un.h>
10 #include <unistd.h>
11