diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 46c2290a08f1803a2e41d01533b627e5045e6421..8029501dc65ce02d1456d4282b8b301771c703df 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1963,7 +1963,7 @@ static void kmemleak_disable(void)
 /*
  * Allow boot-time kmemleak disabling (enabled by default).
  */
-static int kmemleak_boot_config(char *str)
+static int __init kmemleak_boot_config(char *str)
 {
 	if (!str)
 		return -EINVAL;