diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index ba166cb16d..98d987dcf4 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -1016,6 +1016,8 @@ int ff_hevc_decode_nal_sps(HEVCContext *s)
         if (s->sps_list[sps_id] && s->sps == (HEVCSPS*)s->sps_list[sps_id]->data) {
             av_buffer_unref(&s->current_sps);
             s->current_sps = av_buffer_ref(s->sps_list[sps_id]);
+            if (!s->current_sps)
+                s->sps = NULL;
         }
         av_buffer_unref(&s->sps_list[sps_id]);
         s->sps_list[sps_id] = sps_buf;