diff --git a/crates/bili_sync/src/bilibili/analyzer.rs b/crates/bili_sync/src/bilibili/analyzer.rs
index 67b0459..e2d7548 100644
--- a/crates/bili_sync/src/bilibili/analyzer.rs
+++ b/crates/bili_sync/src/bilibili/analyzer.rs
@@ -266,7 +266,7 @@ impl PageAnalyzer {
             && let Some(flac) = self.info.pointer_mut("/dash/flac/audio")
         {
             let (Some(url), Some(quality)) = (flac["baseUrl"].as_str(), flac["id"].as_u64()) else {
-                bail!("invalid flac stream");
+                bail!("invalid flac stream, flac content: {}", flac);
             };
             let quality = AudioQuality::from_repr(quality as usize).context("invalid flac stream quality")?;
             if quality >= filter_option.audio_min_quality && quality <= filter_option.audio_max_quality {