diff --git a/src/tools/logrotate.rs b/src/tools/logrotate.rs
index 13c73a76..3f2e32c7 100644
--- a/src/tools/logrotate.rs
+++ b/src/tools/logrotate.rs
@@ -107,7 +107,7 @@ impl LogRotate {
             for i in 2..count {
                 if filenames[i].extension().unwrap_or(std::ffi::OsStr::new("")) != "zst" {
                     let mut target = filenames[i].clone().into_os_string();
-                    target.push(".zstd");
+                    target.push(".zst");
                     Self::compress(&filenames[i], &target.into(), &options)?;
                 }
             }