diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 952e018..40ea505 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -54,7 +54,7 @@
 				   unsigned int nr_bits);
 static inline int seq_cpumask(struct seq_file *m, const struct cpumask *mask)
 {
-	return seq_bitmap(m, mask->bits, NR_CPUS);
+	return seq_bitmap(m, mask->bits, nr_cpu_ids);
 }
 
 static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask)