diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index acfdf69184a7..fa08236a9036 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1341,7 +1341,7 @@ 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;