diff --git a/src/unix/notbsd/android/mod.rs b/src/unix/notbsd/android/mod.rs
index ac58604a91a0552d7684cb4d24907748ba46824d..b3885aba3d244a776e14717d1e9c1e069bb3e9ae 100644
--- a/src/unix/notbsd/android/mod.rs
+++ b/src/unix/notbsd/android/mod.rs
@@ -19,6 +19,7 @@ pub type nfds_t = ::c_uint;
 pub type rlim_t = ::c_ulong;
 pub type dev_t = ::c_ulong;
 pub type ino_t = ::c_ulong;
+pub type id_t = ::c_uint;
 pub type __CPU_BITTYPE = ::c_ulong;
 pub type idtype_t = ::c_int;
 pub type loff_t = ::c_longlong;
@@ -1951,8 +1952,8 @@ extern {
                        sevlen: ::size_t,
                        flags: ::c_int) -> ::c_int;
     pub fn ptrace(request: ::c_int, ...) -> ::c_long;
-    pub fn getpriority(which: ::c_int, who: ::c_int) -> ::c_int;
-    pub fn setpriority(which: ::c_int, who: ::c_int, prio: ::c_int) -> ::c_int;
+    pub fn getpriority(which: ::c_int, who: ::id_t) -> ::c_int;
+    pub fn setpriority(which: ::c_int, who: ::id_t, prio: ::c_int) -> ::c_int;
     pub fn __sched_cpualloc(count: ::size_t) -> *mut ::cpu_set_t;
     pub fn __sched_cpufree(set: *mut ::cpu_set_t);
     pub fn __sched_cpucount(setsize: ::size_t,