diff --git a/mm/hwpoison-inject.c b/mm/hwpoison-inject.c
index c838735..c597f46 100644
--- a/mm/hwpoison-inject.c
+++ b/mm/hwpoison-inject.c
@@ -92,6 +92,11 @@
 	if (!dentry)
 		goto fail;
 
+	dentry = debugfs_create_u32("corrupt-filter-enable", 0600,
+				    hwpoison_dir, &hwpoison_filter_enable);
+	if (!dentry)
+		goto fail;
+
 	dentry = debugfs_create_u32("corrupt-filter-dev-major", 0600,
 				    hwpoison_dir, &hwpoison_filter_dev_major);
 	if (!dentry)