diff --git a/src/audio/recorder.rs b/src/audio/recorder.rs
index bde1cec..2734567 100644
--- a/src/audio/recorder.rs
+++ b/src/audio/recorder.rs
@@ -192,7 +192,7 @@ mod tests {
         let path = dir.join(format!("peerspeak-test-{}.wav", std::process::id()));
         let mut w = WavWriter::new(&path).unwrap();
         // 100 samples = 200 data bytes.
-        w.write_samples(&vec![1234i16; 100]).unwrap();
+        w.write_samples(&[1234i16; 100]).unwrap();
         w.finalize().unwrap();
 
         let bytes = std::fs::read(&path).unwrap();