Index: thunar-volman/tvm-block-device.c
===================================================================
--- thunar-volman/tvm-block-device.c	(revision 4898)
+++ thunar-volman/tvm-block-device.c	(working copy)
@@ -752,6 +752,10 @@
   /* make sure the volume has a mountable filesystem */
   fsusage = libhal_device_get_property_string (context, udi, "volume.fsusage", NULL);
   has_filesystem = (G_LIKELY (fsusage && strcmp (fsusage, "filesystem") == 0));
+  if (!has_filesystem) 
+    {
+      has_filesystem = (G_LIKELY (fsusage && strcmp (fsusage, "crypto") == 0));
+    }
   libhal_free_string (fsusage);
   if (G_UNLIKELY (!has_filesystem))
     return FALSE;