diff --git a/xtask/src/dist.rs b/xtask/src/dist.rs
index 12a7fea1e1d..b6aa2f52afb 100644
--- a/xtask/src/dist.rs
+++ b/xtask/src/dist.rs
@@ -66,6 +66,7 @@ fn dist_client(version: &str, release_tag: &str) -> Result<()> {
 
 fn dist_server(release_channel: &str) -> Result<()> {
     let _e = pushenv("RUST_ANALYZER_CHANNEL", release_channel);
+    let _e = pushenv("CARGO_PROFILE_RELEASE_LTO", "true");
     let target = get_target();
     if target.contains("-linux-gnu") || target.contains("-linux-musl") {
         env::set_var("CC", "clang");