diff --git a/src/filo-fs-ext2.adb b/src/filo-fs-ext2.adb
index 21cfe0c..93fff8a 100644
--- a/src/filo-fs-ext2.adb
+++ b/src/filo-fs-ext2.adb
@@ -120,6 +120,7 @@
                   return;
                end if;
             end;
+            State.Feature_64Bit := State.Feature_64Bit and State.Desc_Size >= 64;
          else
             State.Desc_Size := Desc_Size'First;
          end if;