diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 88d2f58b3..7a445b877 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1354,7 +1354,7 @@ static void zs_unregister_cpu_notifier(void)
 	cpu_notifier_register_done();
 }
 
-static void init_zs_size_classes(void)
+static void __init init_zs_size_classes(void)
 {
 	int nr;