diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 2aef96f..719ee5c 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -133,7 +133,7 @@
  */
 static ssize_t print_cpus_kernel_max(struct sysdev_class *class, char *buf)
 {
-	int n = snprintf(buf, PAGE_SIZE-2, "%d\n", CONFIG_NR_CPUS - 1);
+	int n = snprintf(buf, PAGE_SIZE-2, "%d\n", NR_CPUS - 1);
 	return n;
 }
 static SYSDEV_CLASS_ATTR(kernel_max, 0444, print_cpus_kernel_max, NULL);