2 files changed, 3 insertions, 0 deletions
diff --git a/lib/zlog.c b/lib/zlog.c
index d44add48b3..6fd52cae62 100644
--- a/lib/zlog.c
+++ b/lib/zlog.c
@@ -67,6 +67,7 @@ DEFINE_HOOK(zlog_aux_init, (const char *prefix, int prio_min),
 char zlog_prefix[128];
 size_t zlog_prefixsz;
 int zlog_tmpdirfd = -1;
+int zlog_instance = -1;
 
 static atomic_bool zlog_ec = true, zlog_xid = true;
 
@@ -885,6 +886,7 @@ void zlog_init(const char *progname, const char *protoname,
 {
 	zlog_uid = uid;
 	zlog_gid = gid;
+	zlog_instance = instance;
 
 	if (instance) {
 		snprintfrr(zlog_tmpdir, sizeof(zlog_tmpdir),
diff --git a/lib/zlog.h b/lib/zlog.h
index 7fd7b0e5c7..ecc30f09b2 100644
--- a/lib/zlog.h
+++ b/lib/zlog.h
@@ -40,6 +40,7 @@ extern "C" {
 extern char zlog_prefix[];
 extern size_t zlog_prefixsz;
 extern int zlog_tmpdirfd;
+extern int zlog_instance;
 
 struct xref_logmsg {
 	struct xref xref;