diff --git a/newlib/libc/sys/redox/src/lib.rs b/newlib/libc/sys/redox/src/lib.rs
index 19a1dbeeb5..201dfe5646 100644
--- a/newlib/libc/sys/redox/src/lib.rs
+++ b/newlib/libc/sys/redox/src/lib.rs
@@ -5,6 +5,7 @@
     alloc_system,
     compiler_builtins_lib,
     const_fn,
+    const_ptr_null,
     core_intrinsics,
     drop_types_in_const,
     global_allocator,