diff --git a/libraries/decoder_ffmpeg/proguard-rules.txt b/libraries/decoder_ffmpeg/proguard-rules.txt
index 7f62d2b7e7..aaf9280fd9 100644
--- a/libraries/decoder_ffmpeg/proguard-rules.txt
+++ b/libraries/decoder_ffmpeg/proguard-rules.txt
@@ -4,3 +4,8 @@
 -keepclasseswithmembernames class * {
     native <methods>;
 }
+
+# This method is called from native code
+-keep, includedescriptorclasses class androidx.media3.decoder.ffmpeg.FfmpegAudioDecoder {
+  private java.nio.ByteBuffer growOutputBuffer(androidx.media3.decoder.SimpleDecoderOutputBuffer, int);
+}