diff --git a/src/torchaudio/_backend/ffmpeg.py b/src/torchaudio/_backend/ffmpeg.py
index ca8374ea07..a3539523da 100644
--- a/src/torchaudio/_backend/ffmpeg.py
+++ b/src/torchaudio/_backend/ffmpeg.py
@@ -69,7 +69,7 @@ def _load_audio(
     s.process_all_packets()
     chunk = s.pop_chunks()[0]
     if chunk is None:
-        raise RuntimeError("Failed to decode audio.")
+        raise RuntimeError(f"Failed to decode audio source: {s.src}")
     waveform = chunk._elem
     return waveform.T if channels_first else waveform