diff --git a/fs/fat/fat.c b/fs/fat/fat.c
index 6d7012c..73ffdea 100644
--- a/fs/fat/fat.c
+++ b/fs/fat/fat.c
@@ -631,6 +631,7 @@
 
 typedef struct {
 	fsdata    *fsdata;        /* filesystem parameters */
+	unsigned   start_clust;   /* first cluster */
 	unsigned   clust;         /* current cluster */
 	unsigned   next_clust;    /* next cluster if remaining == 0 */
 	int        last_cluster;  /* set once we've read last cluster */
@@ -663,6 +664,7 @@
 		return -ENXIO;
 
 	itr->fsdata = fsdata;
+	itr->start_clust = 0;
 	itr->clust = fsdata->root_cluster;
 	itr->next_clust = fsdata->root_cluster;
 	itr->dent = NULL;
@@ -698,6 +700,7 @@
 	assert(fat_itr_isdir(parent));
 
 	itr->fsdata = parent->fsdata;
+	itr->start_clust = clustnum;
 	if (clustnum > 0) {
 		itr->clust = clustnum;
 		itr->next_clust = clustnum;