diff --git a/src/probe.rs b/src/probe.rs
index 69e457b6..d68b1529 100644
--- a/src/probe.rs
+++ b/src/probe.rs
@@ -292,6 +292,6 @@ mod tests {
 		let data: Vec<u8> = data.into_iter().flatten().cloned().collect();
 		let data = std::io::Cursor::new(&data);
 		let probe = Probe::new(data).guess_file_type().unwrap();
-		matches!(probe.file_type(), Some(crate::FileType::MP3));
+		assert_eq!(probe.file_type(), Some(crate::FileType::MP3));
 	}
 }