diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index bbab134..243aea4 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -88,6 +88,9 @@
 #ifdef MULTI_CACHE
 struct cpu_cache_fns cpu_cache;
 #endif
+#ifdef CONFIG_OUTER_CACHE
+struct outer_cache_fns outer_cache;
+#endif
 
 struct stack {
 	u32 irq[3];