diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index c450bf6..22d34d3 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -798,6 +798,8 @@ do_fat_read (const char *filename, void *buffer, unsigned long maxsize,
 	if (mydata->fatsize == 32) {
 		mydata->data_begin = mydata->rootdir_sect -
 					(mydata->clust_size * 2);
+		cursect = mydata->data_begin +
+				(root_cluster * mydata->clust_size);
 	} else {
 		rootdir_size = ((bs.dir_entries[1]  * (int)256 +
 				 bs.dir_entries[0]) *