diff --git a/isisd/isis_spf.c b/isisd/isis_spf.c
index 1440a3becf..1c4ca249ee 100644
--- a/isisd/isis_spf.c
+++ b/isisd/isis_spf.c
@@ -1248,7 +1248,8 @@ static struct isis_spf_run *isis_run_spf_arg(struct isis_area *area, int level)
 	return run;
 }
 
-int isis_spf_schedule(struct isis_area *area, int level)
+int _isis_spf_schedule(struct isis_area *area, int level,
+		       const char *func, const char *file, int line)
 {
 	struct isis_spftree *spftree = area->spftree[SPFTREE_IPV4][level - 1];
 	time_t now = monotime(NULL);
@@ -1257,10 +1258,12 @@ int isis_spf_schedule(struct isis_area *area, int level)
 	assert(diff >= 0);
 	assert(area->is_type & level);
 
-	if (isis->debugs & DEBUG_SPF_EVENTS)
+	if (isis->debugs & DEBUG_SPF_EVENTS) {
 		zlog_debug(
-			"ISIS-Spf (%s) L%d SPF schedule called, lastrun %d sec ago",
-			area->area_tag, level, diff);
+			"ISIS-Spf (%s) L%d SPF schedule called, lastrun %d sec ago"
+			" Caller: %s %s:%d",
+			area->area_tag, level, diff, func, file, line);
+	}
 
 	if (area->spf_delay_ietf[level - 1]) {
 		/* Need to call schedule function also if spf delay is running
diff --git a/isisd/isis_spf.h b/isisd/isis_spf.h
index f4db98cfed..8bf9c9978a 100644
--- a/isisd/isis_spf.h
+++ b/isisd/isis_spf.h
@@ -34,7 +34,11 @@ void isis_spftree_del(struct isis_spftree *spftree);
 void spftree_area_init(struct isis_area *area);
 void spftree_area_del(struct isis_area *area);
 void spftree_area_adj_del(struct isis_area *area, struct isis_adjacency *adj);
-int isis_spf_schedule(struct isis_area *area, int level);
+#define isis_spf_schedule(area, level) \
+	_isis_spf_schedule((area), (level), __func__, \
+			   __FILE__, __LINE__)
+int _isis_spf_schedule(struct isis_area *area, int level,
+		       const char *func, const char *file, int line);
 void isis_spf_cmds_init(void);
 void isis_spf_print(struct isis_spftree *spftree, struct vty *vty);
 struct isis_spftree *isis_run_hopcount_spf(struct isis_area *area,