diff --git a/faults.go b/faults.go
index 05347f26c..8580c0d93 100644
--- a/faults.go
+++ b/faults.go
@@ -98,11 +98,13 @@ func addCachePathsForSectorSize(chk map[string]int64, cacheDir string, ssize abi
 	case 512 << 20:
 		chk[filepath.Join(cacheDir, "sc-02-data-tree-r-last.dat")] = 0
 	case 32 << 30:
-		fallthrough
-	case 64 << 30:
 		for i := 0; i < 8; i++ {
 			chk[filepath.Join(cacheDir, fmt.Sprintf("sc-02-data-tree-r-last-%d.dat", i))] = 0
 		}
+	case 64 << 30:
+		for i := 0; i < 16; i++ {
+			chk[filepath.Join(cacheDir, fmt.Sprintf("sc-02-data-tree-r-last-%d.dat", i))] = 0
+		}
 	default:
 		log.Warnf("not checking cache files of %s sectors for faults", ssize)
 	}