diff --git a/src/logger.rs b/src/logger.rs
index c0d4870..ffcf39d 100644
--- a/src/logger.rs
+++ b/src/logger.rs
@@ -243,7 +243,7 @@ async fn compress(path: impl AsRef<Path>) {
             .await
             .map_err(|e| format_err!("open {path_str} failed: {e}"))?;
 
-        let out_path = path.with_extension("zstd");
+        let out_path = path.with_extension("zst");
         let out = (File::create(&out_path).await) // create output
             .map_err(|e| format_err!("create {} failed: {e}", out_path.to_string_lossy()))?;
 
@@ -286,7 +286,7 @@ pub async fn log_files(log_path: &str, log_name: &str) -> std::io::Result<Vec<Lo
         };
 
         let (name, compressed) = file_name
-            .strip_suffix(".zstd")
+            .strip_suffix(".zst")
             .map_or((file_name, false), |s| (s, true));
 
         let Some(name) = name.strip_suffix(".log") else {
diff --git a/test-dkl b/test-dkl
index e6f103c..5156037 100755
--- a/test-dkl
+++ b/test-dkl
@@ -3,7 +3,7 @@ set -ex
 
 dkl=target/debug/dkl
 
-test=${1:-dynlay}
+test=${1:-logger}
 
 export RUST_LOG=debug,rsmount=info