diff --git a/scripts/build-vtest.sh b/scripts/build-vtest.sh
index b9945078bb..7b6b23526f 100755
--- a/scripts/build-vtest.sh
+++ b/scripts/build-vtest.sh
@@ -2,7 +2,7 @@
 
 set -eux
 
-curl -fsSL https://github.com/wlallemand/VTest/archive/refs/heads/haproxy-sd_notify.tar.gz -o VTest.tar.gz
+curl -fsSL https://github.com/wlallemand/VTest/archive/refs/heads/haproxy-sd_notify_nonblock.tar.gz -o VTest.tar.gz
 mkdir ../vtest
 tar xvf VTest.tar.gz -C ../vtest --strip-components=1
 # Special flags due to: https://github.com/vtest/VTest/issues/12
diff --git a/src/systemd.c b/src/systemd.c
index 64e8e45631..45e2c4ff61 100644
--- a/src/systemd.c
+++ b/src/systemd.c
@@ -111,6 +111,7 @@ int sd_notify(int unset_environment, const char *message)
 	}
 
 end:
+	fprintf(stderr, "SD_NOTIFY: msg: %s file: %s fd: %d return: %d, strerror: %s\n", message, socket_path, fd, ret, strerror(-ret));
 	if (fd > -1)
 		close(fd);
 	return ret; /* Notified! */