diff --git a/libavformat/sbgdec.c b/libavformat/sbgdec.c
index 23b7ea4489..03cd9226c9 100644
--- a/libavformat/sbgdec.c
+++ b/libavformat/sbgdec.c
@@ -973,6 +973,8 @@ static int expand_tseq(void *log, struct sbg_script *s, int *nb_ev_max,
     } else {
         ev = alloc_array_elem((void **)&s->events, sizeof(*ev),
                               &s->nb_events, nb_ev_max);
+        if (!ev)
+            return AVERROR(ENOMEM);
         ev->ts          = tseq->ts.t;
         ev->elements    = def->elements;
         ev->nb_elements = def->nb_elements;