diff --git a/CHANGELOG.md b/CHANGELOG.md
index aa285e25..07c6392d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,5 @@
 
+ * Fix crash in `FFmpegFrameRecorder.flush()` for HLS format and possibly others ([pull #1374](https://github.com/bytedeco/javacv/pull/1374))
  * Fix "Resetting to invalid mark" `IOException` thrown on `FFmpegFrameGrabber.release()` ([issue #911](https://github.com/bytedeco/javacv/issues/911))
  * Upgrade dependencies for OpenCV 4.2.0, FFmpeg 4.2.2, Leptonica 1.79.0, and Tesseract 4.1.1
  * Add `Seekable` and `SeekableByteArrayOutputStream` to be used with `FFmpegFrameRecorder` ([pull #1350](https://github.com/bytedeco/javacv/pull/1350))
diff --git a/src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java b/src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java
index 924ec1fe..7793f5a7 100644
--- a/src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java
+++ b/src/main/java/org/bytedeco/javacv/FFmpegFrameRecorder.java
@@ -903,7 +903,7 @@ public void flush() throws Exception {
             while (video_st != null && ifmt_ctx == null && recordImage(0, 0, 0, 0, 0, AV_PIX_FMT_NONE, (Buffer[])null));
             while (audio_st != null && ifmt_ctx == null && recordSamples(0, 0, (Buffer[])null));
 
-            if (interleaved && video_st != null && audio_st != null) {
+            if (interleaved && (video_st != null || audio_st != null)) {
                 av_interleaved_write_frame(oc, null);
             } else {
                 av_write_frame(oc, null);