diff --git a/src/unix/linux_like/linux/uclibc/mod.rs b/src/unix/linux_like/linux/uclibc/mod.rs
index 48b03e9ee43fa..eda5fb782eb4d 100644
--- a/src/unix/linux_like/linux/uclibc/mod.rs
+++ b/src/unix/linux_like/linux/uclibc/mod.rs
@@ -374,6 +374,7 @@ extern "C" {
     pub fn setrlimit(resource: ::__rlimit_resource_t, rlim: *const ::rlimit) -> ::c_int;
     pub fn getpriority(which: ::__priority_which_t, who: ::id_t) -> ::c_int;
     pub fn setpriority(which: ::__priority_which_t, who: ::id_t, prio: ::c_int) -> ::c_int;
+    pub fn getauxval(type_: ::c_ulong) -> ::c_ulong;
 }
 
 cfg_if! {