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-rw-r--r--library/std/src/sys/alloc/xous.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/library/std/src/sys/alloc/xous.rs b/library/std/src/sys/alloc/xous.rs
index 321d30e0b11..9d22e16fdf2 100644
--- a/library/std/src/sys/alloc/xous.rs
+++ b/library/std/src/sys/alloc/xous.rs
@@ -8,7 +8,7 @@ use crate::alloc::{GlobalAlloc, Layout, System};
 static mut DLMALLOC: dlmalloc::Dlmalloc = dlmalloc::Dlmalloc::new();
 
 #[cfg(test)]
-extern "Rust" {
+unsafe extern "Rust" {
     #[link_name = "_ZN16__rust_internals3std3sys4xous5alloc8DLMALLOCE"]
     static mut DLMALLOC: dlmalloc::Dlmalloc;
 }