diff --git a/libavcodec/bsf.h b/libavcodec/bsf.h
index 7ed51677e8..3b5faa85cb 100644
--- a/libavcodec/bsf.h
+++ b/libavcodec/bsf.h
@@ -215,7 +215,7 @@ int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
 int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
 
 /**
- * Reset the internal bitstream filter state / flush internal buffers.
+ * Reset the internal bitstream filter state. Should be called e.g. when seeking.
  */
 void av_bsf_flush(AVBSFContext *ctx);