diff --git a/src/unix/bsd/freebsdlike/freebsd/mod.rs b/src/unix/bsd/freebsdlike/freebsd/mod.rs
index 35fe554a3a4e05fd68b82bfd4d943f41e77b56de..6b10a95b2ba0a2c19f95d59b63fb47c0154555c3 100644
--- a/src/unix/bsd/freebsdlike/freebsd/mod.rs
+++ b/src/unix/bsd/freebsdlike/freebsd/mod.rs
@@ -116,6 +116,19 @@ s! {
         pub sc_ngroups: ::c_int,
         pub sc_groups: [::gid_t; 1],
     }
+
+    pub struct ptrace_vm_entry {
+        pub pve_entry: ::c_int,
+        pub pve_timestamp: ::c_int,
+        pub pve_start: ::c_ulong,
+        pub pve_end: ::c_ulong,
+        pub pve_offset: ::c_ulong,
+        pub pve_prot: ::c_uint,
+        pub pve_pathlen: ::c_uint,
+        pub pve_fileid: ::c_long,
+        pub pve_fsid: u32,
+        pub pve_path: *mut ::c_char,
+    }
 }
 
 s_no_extra_traits! {