diff --git a/ChangeLog b/ChangeLog
index 56d011b27..1194a701c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,7 +2,8 @@
 
 	* stage2/fsys_fat.c (fat_mount): Fixed calculation of num_clust.
 	It was off by two, since the two non existing clusters 0 and 1
-	were not taken into account.
+	were not taken into account.  Also fixed the boundary between
+	FAT12 and FAT16.
 	
 2000-07-25  OKUJI Yoshinori  <okuji@gnu.org>
 
diff --git a/stage2/fsys_fat.c b/stage2/fsys_fat.c
index 22ef03de7..798b90d4c 100644
--- a/stage2/fsys_fat.c
+++ b/stage2/fsys_fat.c
@@ -124,7 +124,7 @@ fat_mount (void)
  	return 0;
       
       FAT_SUPER->root_cluster = -1;
-      if (FAT_SUPER->num_clust > FAT_MAX_12BIT_CLUST)
+      if (FAT_SUPER->num_clust >= FAT_MAX_12BIT_CLUST)
  	FAT_SUPER->fat_size = 4;
       else
  	FAT_SUPER->fat_size = 3;