diff --git a/fs/fs.c b/fs/fs.c
index 1a6a64ea7f..c05e6c85ed 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -183,7 +183,8 @@ static struct fstype_info fstypes[] = {
 		.closedir = fat_closedir,
 	},
 #endif
-#ifdef CONFIG_FS_EXT4
+
+#if CONFIG_IS_ENABLED(FS_EXT4)
 	{
 		.fstype = FS_TYPE_EXT,
 		.name = "ext4",