diff --git a/src/libstd/os/dragonfly/raw.rs b/src/libstd/os/dragonfly/raw.rs
index 22c811ead4335..86522cc1e795c 100644
--- a/src/libstd/os/dragonfly/raw.rs
+++ b/src/libstd/os/dragonfly/raw.rs
@@ -11,7 +11,7 @@
 //! Dragonfly-specific raw type definitions
 
 use os::raw::c_long;
-use os::unix::raw::{pid_t, uid_t, gid_t};
+use os::unix::raw::{uid_t, gid_t};
 
 pub type blkcnt_t = i64;
 pub type blksize_t = u32;
diff --git a/src/libstd/os/freebsd/raw.rs b/src/libstd/os/freebsd/raw.rs
index a810eff45d32e..a3b95738a1a1a 100644
--- a/src/libstd/os/freebsd/raw.rs
+++ b/src/libstd/os/freebsd/raw.rs
@@ -11,7 +11,7 @@
 //! FreeBSD-specific raw type definitions
 
 use os::raw::c_long;
-use os::unix::raw::{uid_t, gid_t, pid_t};
+use os::unix::raw::{uid_t, gid_t};
 
 pub type blkcnt_t = i64;
 pub type blksize_t = i64;
diff --git a/src/libstd/os/ios/raw.rs b/src/libstd/os/ios/raw.rs
index 3266b3846d899..a66e01b2c3992 100644
--- a/src/libstd/os/ios/raw.rs
+++ b/src/libstd/os/ios/raw.rs
@@ -11,7 +11,7 @@
 //! iOS-specific raw type definitions
 
 use os::raw::c_long;
-use os::unix::raw::{uid_t, gid_t, pid_t};
+use os::unix::raw::{uid_t, gid_t};
 
 pub type blkcnt_t = i64;
 pub type blksize_t = i32;
diff --git a/src/libstd/os/openbsd/raw.rs b/src/libstd/os/openbsd/raw.rs
index 632a8c336b78d..0bdba9e3487f1 100644
--- a/src/libstd/os/openbsd/raw.rs
+++ b/src/libstd/os/openbsd/raw.rs
@@ -11,7 +11,7 @@
 //! OpenBSD-specific raw type definitions
 
 use os::raw::c_long;
-use os::unix::raw::{uid_t, gid_t, pid_t};
+use os::unix::raw::{uid_t, gid_t};
 
 pub type blkcnt_t = i64;
 pub type blksize_t = u32;