diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
index eee82d0d89fd8..cc2bcd516bfc3 100644
--- a/src/fuchsia/mod.rs
+++ b/src/fuchsia/mod.rs
@@ -3780,7 +3780,7 @@ extern "C" {
     pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: ::c_int) -> ::c_int;
     pub fn select(
         nfds: ::c_int,
-        readfs: *mut fd_set,
+        readfds: *mut fd_set,
         writefds: *mut fd_set,
         errorfds: *mut fd_set,
         timeout: *mut timeval,
@@ -3817,7 +3817,7 @@ extern "C" {
 
     pub fn pselect(
         nfds: ::c_int,
-        readfs: *mut fd_set,
+        readfds: *mut fd_set,
         writefds: *mut fd_set,
         errorfds: *mut fd_set,
         timeout: *const timespec,
diff --git a/src/unix/mod.rs b/src/unix/mod.rs
index 16b69bb86b44d..74df3c3be9b6c 100644
--- a/src/unix/mod.rs
+++ b/src/unix/mod.rs
@@ -1304,7 +1304,7 @@ extern "C" {
     #[cfg_attr(target_os = "netbsd", link_name = "__select50")]
     pub fn select(
         nfds: ::c_int,
-        readfs: *mut fd_set,
+        readfds: *mut fd_set,
         writefds: *mut fd_set,
         errorfds: *mut fd_set,
         timeout: *mut timeval,
@@ -1356,7 +1356,7 @@ extern "C" {
     #[cfg_attr(target_os = "netbsd", link_name = "__pselect50")]
     pub fn pselect(
         nfds: ::c_int,
-        readfs: *mut fd_set,
+        readfds: *mut fd_set,
         writefds: *mut fd_set,
         errorfds: *mut fd_set,
         timeout: *const timespec,