diff --git a/configure.ac b/configure.ac
index 7f487ca..5c6a6fe 100644
--- a/configure.ac
+++ b/configure.ac
@@ -93,6 +93,13 @@
 AC_DEFINE_UNQUOTED([LDAP_CONF_PERSIST_PATH], ["$LDAP_CONF_PERSIST_PATH"], \
     [path of directory having persisted LDAP configuration enabled property.])
 
+AS_IF([test "x$enable_root_user_mgmt" != "xno"],
+    AC_MSG_NOTICE([Enable managing root user])
+    [cpp_flags="-DENABLE_ROOT_USER_MGMT"]
+    AC_SUBST([CPPFLAGS], [$cpp_flags]),
+    AC_MSG_WARN([Disable managing root user])
+)
+
 AC_DEFINE(SYSTEMD_BUSNAME, "org.freedesktop.systemd1", [systemd busname.])
 AC_DEFINE(SYSTEMD_PATH, "/org/freedesktop/systemd1", [systemd path.])
 AC_DEFINE(SYSTEMD_INTERFACE, "org.freedesktop.systemd1.Manager", [systemd interface.])
diff --git a/user_mgr.cpp b/user_mgr.cpp
index 17146e6..2f22323 100644
--- a/user_mgr.cpp
+++ b/user_mgr.cpp
@@ -752,10 +752,15 @@
             // Any error, break the loop.
             break;
         }
+#ifdef ENABLE_ROOT_USER_MGMT
         // Add all users whose UID >= 1000 and < 65534
         // and special UID 0.
         if ((pwp->pw_uid == 0) ||
             ((pwp->pw_uid >= 1000) && (pwp->pw_uid < 65534)))
+#else
+        // Add all users whose UID >=1000 and < 65534
+        if ((pwp->pw_uid >= 1000) && (pwp->pw_uid < 65534))
+#endif
         {
             std::string userName(pwp->pw_name);
             userList.emplace_back(userName);