diff --git a/extra/unix/bsd/macosx/macosx.factor b/extra/unix/bsd/macosx/macosx.factor
index edef2aaa0c..174dcbf632 100644
--- a/extra/unix/bsd/macosx/macosx.factor
+++ b/extra/unix/bsd/macosx/macosx.factor
@@ -12,3 +12,16 @@ C-STRUCT: addrinfo
     { "char*" "canonname" }
     { "void*" "addr" }
     { "addrinfo*" "next" } ;
+
+C-STRUCT: passwd
+    { "char*"  "pw_name" }
+    { "char*"  "pw_passwd" }
+    { "uid_t"  "pw_uid" }
+    { "gid_t"  "pw_gid" }
+    { "time_t" "pw_change" }
+    { "char*"  "pw_class" }
+    { "char*"  "pw_gecos" }
+    { "char*"  "pw_dir" }
+    { "char*"  "pw_shell" }
+    { "time_t" "pw_expire" }
+    { "int"    "pw_fields" } ;
diff --git a/extra/unix/linux/linux.factor b/extra/unix/linux/linux.factor
index 74195fae36..9450663aaa 100755
--- a/extra/unix/linux/linux.factor
+++ b/extra/unix/linux/linux.factor
@@ -84,3 +84,12 @@ C-STRUCT: sockaddr-un
 : SEEK_SET 0 ; inline
 : SEEK_CUR 1 ; inline
 : SEEK_END 2 ; inline
+
+C-STRUCT: passwd
+    { "char*"  "pw_name" }
+    { "char*"  "pw_passwd" }
+    { "uid_t"  "pw_uid" }
+    { "gid_t"  "pw_gid" }
+    { "char*"  "pw_gecos" }
+    { "char*"  "pw_dir" }
+    { "char*"  "pw_shell" } ;
diff --git a/extra/unix/unix.factor b/extra/unix/unix.factor
index 7d846b9bef..f1f46fc184 100755
--- a/extra/unix/unix.factor
+++ b/extra/unix/unix.factor
@@ -34,19 +34,6 @@ C-STRUCT: group
     { "int" "gr_gid" }
     { "char**" "gr_mem" } ;
 
-C-STRUCT: passwd
-    { "char*"  "pw_name" }
-    { "char*"  "pw_passwd" }
-    { "uid_t"  "pw_uid" }
-    { "gid_t"  "pw_gid" }
-    { "time_t" "pw_change" }
-    { "char*"  "pw_class" }
-    { "char*"  "pw_gecos" }
-    { "char*"  "pw_dir" }
-    { "char*"  "pw_shell" }
-    { "time_t" "pw_expire" }
-    { "int"    "pw_fields" } ;
-
 LIBRARY: factor
 
 FUNCTION: void clear_err_no ( ) ;