1 files changed, 2 insertions, 2 deletions
diff --git a/library/std/src/sys/wasi/os.rs b/library/std/src/sys/wasi/os.rs
index cffe1e32308..f5513e9996d 100644
--- a/library/std/src/sys/wasi/os.rs
+++ b/library/std/src/sys/wasi/os.rs
@@ -38,10 +38,10 @@ cfg_if::cfg_if! {
     } else {
         // No need for a lock if we are single-threaded.
         pub fn env_read_lock() -> impl Drop {
-            ()
+            Box::new(())
         }
         pub fn env_write_lock() -> impl Drop {
-            ()
+            Box::new(())
         }
     }
 }