diff --git a/libc/private/bionic_auxv.h b/libc/private/bionic_auxv.h
index 53fcc49..494fe9c 100644
--- a/libc/private/bionic_auxv.h
+++ b/libc/private/bionic_auxv.h
@@ -34,7 +34,7 @@
 
 __BEGIN_DECLS
 
-extern ElfW(auxv_t)* __libc_auxv;
+__LIBC_HIDDEN__ extern ElfW(auxv_t)* __libc_auxv;
 
 __END_DECLS