diff --git a/DiscImageChef.Tests/Filesystems/HPFS.cs b/DiscImageChef.Tests/Filesystems/HPFS.cs
index f3552886..09070ca7 100644
--- a/DiscImageChef.Tests/Filesystems/HPFS.cs
+++ b/DiscImageChef.Tests/Filesystems/HPFS.cs
@@ -69,15 +69,15 @@ namespace DiscImageChef.Tests.Filesystems
         };
 
         readonly long[] clusters = {
-            65268, 63941, 63941, 63941,
-            63941, 63941, 65504, 65504,
-            65504, 65504, 65504, 65504,
+            261072, 1023056, 1023056, 1023056,
+            1023056, 1023056, 262016, 262016,
+            262016, 262016, 262016, 262112,
         };
 
         readonly int[] clustersize = {
-            2048, 8192, 8192, 8192,
-            8192, 8192, 2048, 2048,
-            2048, 2048, 2048, 2048,
+            512, 512, 512, 512,
+            512, 512, 512, 512,
+            512, 512, 512, 512,
         };
 
         readonly string[] volumename = {
@@ -89,7 +89,7 @@ namespace DiscImageChef.Tests.Filesystems
         readonly string[] volumeserial = {
             "2BBBD814","AC0DDC15","ABEB2C15","6C4EE015",
             "6C406015","6C49B015","2BCEB414","2C157414",
-            "2BF55414","2BE31414","E851CB14","UNKNOWN0",
+            "2BF55414","2BE31414","E851CB14","A4EDC29C",
         };
 
         readonly string[] oemid = {