diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs
index 58684ffe500ad..4d4aeff2a9738 100644
--- a/library/std/src/lib.rs
+++ b/library/std/src/lib.rs
@@ -236,6 +236,7 @@
     feature(slice_index_methods, coerce_unsized, sgx_platform)
 )]
 #![cfg_attr(windows, feature(round_char_boundary))]
+#![cfg_attr(target_os = "xous", feature(slice_ptr_len))]
 //
 // Language features:
 // tidy-alphabetical-start