Do it like the rest of the function and use imsg_get_fd() instead of
imsg->fd.

-- 
:wq Claudio

Index: config.c
===================================================================
RCS file: /cvs/src/usr.sbin/relayd/config.c,v
diff -u -p -r1.46 config.c
--- config.c	28 Oct 2024 19:56:18 -0000	1.46
+++ config.c	31 Oct 2024 13:12:35 -0000
@@ -1181,7 +1181,7 @@ config_getrelayfd(struct relayd *env, st
 		rlay->rl_tls_cacert_fd = imsg_get_fd(imsg);
 		break;
 	case RELAY_FD_CLIENTCACERT:
-		rlay->rl_tls_client_ca_fd = imsg->fd;
+		rlay->rl_tls_client_ca_fd = imsg_get_fd(imsg);
 		break;
 	}