diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 5b257a5..e62a4cc 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -119,7 +119,7 @@
 #define	print_cpus_func(type) \
 static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf)	\
 {									\
-	return print_cpus_map(buf, &cpu_##type##_map);			\
+	return print_cpus_map(buf, cpu_##type##_mask);			\
 }									\
 static struct sysdev_class_attribute attr_##type##_map = 		\
 	_SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL)