diff --git a/src/extcheck.c b/src/extcheck.c
index 96d61c94e..6665e96bf 100644
--- a/src/extcheck.c
+++ b/src/extcheck.c
@@ -427,20 +427,21 @@ static int connect_proc_chk(struct task *t)
 		environ = check->envp;
 
 		/* Update some environment variables and command args: curconn, server addr and server port */
-		extchk_setenv(check, EXTCHK_HAPROXY_SERVER_CURCONN, ultoa_r(s->cur_sess, buf, sizeof(buf)));
+		EXTCHK_SETENV(check, EXTCHK_HAPROXY_SERVER_CURCONN, ultoa_r(s->cur_sess, buf, sizeof(buf)), fail);
 
 		addr_to_str(&s->addr, check->argv[3], EXTCHK_SIZE_ADDR);
-		extchk_setenv(check, EXTCHK_HAPROXY_SERVER_ADDR, check->argv[3]);
+		EXTCHK_SETENV(check, EXTCHK_HAPROXY_SERVER_ADDR, check->argv[3], fail);
 
 		*check->argv[4] = 0;
 		if (s->addr.ss_family == AF_INET || s->addr.ss_family == AF_INET6)
 			snprintf(check->argv[4], EXTCHK_SIZE_UINT, "%u", s->svc_port);
-		extchk_setenv(check, EXTCHK_HAPROXY_SERVER_PORT, check->argv[4]);
+		EXTCHK_SETENV(check, EXTCHK_HAPROXY_SERVER_PORT, check->argv[4], fail);
 
 		haproxy_unblock_signals();
 		execvp(px->check_command, check->argv);
 		ha_alert("Failed to exec process for external health check: %s. Aborting.\n",
 			 strerror(errno));
+	fail:
 		exit(-1);
 	}