diff --git a/include/_tail_cc/grp.h b/include/_tail_cc/grp.h
index dc7d25fb7..38992642e 100644
--- a/include/_tail_cc/grp.h
+++ b/include/_tail_cc/grp.h
@@ -10,7 +10,7 @@
 struct	group { 
   char *gr_name;		/* the name of the group */
   char *gr_passwd;		/* the group passwd */
-  gid_t gr_gid;			/* the numerical group ID */
+  int gr_gid;			/* the numerical group ID */
   char **gr_mem;		/* a vector of pointers to the members */
 };
 
diff --git a/include/_tail_cc/pwd.h b/include/_tail_cc/pwd.h
index 7b2797919..ea2522782 100644
--- a/include/_tail_cc/pwd.h
+++ b/include/_tail_cc/pwd.h
@@ -9,8 +9,8 @@
 
 struct passwd {
   char *pw_name;		/* login name */
-  uid_t pw_uid;			/* uid corresponding to the name */
-  gid_t pw_gid;			/* gid corresponding to the name */
+  int pw_uid;			/* uid corresponding to the name */
+  int pw_gid;			/* gid corresponding to the name */
   char *pw_dir;			/* user's home directory */
   char *pw_shell;		/* name of the user's shell */