diff --git a/xen/common/domain.c b/xen/common/domain.c
index 8c8f70347a..303c338ef2 100644
--- a/xen/common/domain.c
+++ b/xen/common/domain.c
@@ -2411,6 +2411,8 @@ domid_t get_initial_domain_id(void)
     return 0;
 }
 
+#ifdef CONFIG_SYSTEM_SUSPEND
+
 void freeze_domains(void)
 {
     struct domain *d;
@@ -2436,6 +2438,8 @@ void thaw_domains(void)
     rcu_read_unlock(&domlist_read_lock);
 }
 
+#endif /* CONFIG_SYSTEM_SUSPEND */
+
 /*
  * Local variables:
  * mode: C