diff --git a/mysql-useradm.c b/mysql-useradm.c
index 258b82a..7a46c23 100644
--- a/mysql-useradm.c
+++ b/mysql-useradm.c
@@ -170,7 +170,7 @@ show(MYSQL *pmysql, const char *user)
 char **
 list(MYSQL *pmysql)
 {
-  char query[4096], *end;
+  char query[40960], *end;
   char **usrgroups, **cp;
   MYSQL_RES *res;
   int rows, numgroups;