Index: src/useradd.c
===================================================================
--- src/useradd.c.orig
+++ src/useradd.c
@@ -101,7 +101,7 @@ FILE *shadow_logfd = NULL;
 /*
  * These defaults are used if there is no defaults file.
  */
-static gid_t def_group = 1000;
+static gid_t def_group = 100;
 static const char *def_gname = "other";
 static const char *def_home = "/home";
 static const char *def_shell = "/bin/bash";