Index: hooks-encrypt
===================================================================
--- hooks-encrypt	(revision 424402)
+++ hooks-encrypt	(working copy)
@@ -68,6 +68,9 @@
             no-write-workqueue|perf-no_write_workqueue)
                 cryptargs="${cryptargs} --perf-no_write_workqueue"
                 ;;
+            sector-size=*)
+                cryptargs="${cryptargs} --sector-size ${cryptopt#*=}"
+                ;;
             *)
                 echo "Encryption option '${cryptopt}' not known, ignoring." >&2
                 ;;