diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index b9df9ed1adc0620f59feb402278d727fcfd8b426..d5dd4657c8d64133eaa2e31ca745770b7b81af4b 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -83,7 +83,7 @@ static inline int percpu_counter_initialized(struct percpu_counter *fbc)
 	return (fbc->counters != NULL);
 }
 
-#else
+#else /* !CONFIG_SMP */
 
 struct percpu_counter {
 	s64 count;