diff --git a/library/std/src/os/xous/mod.rs b/library/std/src/os/xous/mod.rs
index 153694a89a7..4b21695c4ac 100644
--- a/library/std/src/os/xous/mod.rs
+++ b/library/std/src/os/xous/mod.rs
@@ -1,5 +1,6 @@
 #![stable(feature = "rust1", since = "1.0.0")]
 #![doc(cfg(target_os = "xous"))]
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 pub mod ffi;
 
diff --git a/library/std/src/sys/pal/xous/mod.rs b/library/std/src/sys/pal/xous/mod.rs
index a28a52e305e..961d45c5e83 100644
--- a/library/std/src/sys/pal/xous/mod.rs
+++ b/library/std/src/sys/pal/xous/mod.rs
@@ -1,4 +1,4 @@
-#![deny(unsafe_op_in_unsafe_fn)]
+#![forbid(unsafe_op_in_unsafe_fn)]
 
 pub mod alloc;
 #[path = "../unsupported/args.rs"]