diff --git a/src/libstd/os/dragonfly/raw.rs b/src/libstd/os/dragonfly/raw.rs
index 22c811ead43351518600ed9942d919c2a055b66e..86522cc1e795cf5d1f860282d0cf49f11e1e95ec 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 a810eff45d32e27fb47d8e6496a7b604625c1e68..a3b95738a1a1a1e2c1c3f042ee4ba3a4c8c71075 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/openbsd/raw.rs b/src/libstd/os/openbsd/raw.rs
index 632a8c336b78dc869d952437c0beab67bf083272..0bdba9e3487f1c14acb1f2ecd749d1dbaf3e1c4f 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;