diff --git a/include/asm-x86/topology.h b/include/asm-x86/topology.h
index 9c25160..f8706b2 100644
--- a/include/asm-x86/topology.h
+++ b/include/asm-x86/topology.h
@@ -30,7 +30,7 @@
 #include <asm/mpspec.h>
 
 /* Mappings between logical cpu number and node number */
-extern int cpu_to_node_map[];
+extern u16 cpu_to_node_map[];
 extern cpumask_t node_to_cpumask_map[];
 
 /* Returns the number of the node containing CPU 'cpu' */