1 files changed, 6 insertions, 3 deletions
diff --git a/src/libstd/sys/cloudabi/mod.rs b/src/libstd/sys/cloudabi/mod.rs
index 77a52a8743d..6e147612eb4 100644
--- a/src/libstd/sys/cloudabi/mod.rs
+++ b/src/libstd/sys/cloudabi/mod.rs
@@ -61,8 +61,11 @@ pub use libc::strlen;
 
 pub fn hashmap_random_keys() -> (u64, u64) {
     unsafe {
-        let mut v = mem::uninitialized();
-        libc::arc4random_buf(&mut v as *mut _ as *mut libc::c_void, mem::size_of_val(&v));
-        v
+        let mut v: mem::MaybeUninit<(u64, u64)> = mem::MaybeUninit::uninit();
+        libc::arc4random_buf(
+            v.as_mut_ptr() as *mut libc::c_void,
+            mem::size_of_val(&v)
+        );
+        v.assume_init()
     }
 }