diff --git a/encryptedstore/src/main.rs b/encryptedstore/src/main.rs
index 96c80db..b7ba9e0 100644
--- a/encryptedstore/src/main.rs
+++ b/encryptedstore/src/main.rs
@@ -125,6 +125,7 @@
     let mkfs_options = [
         "-j",               // Create appropriate sized journal
         "-O metadata_csum", // Metadata checksum for filesystem integrity
+        "-b 4096",          // block size in the filesystem
     ];
     let mut cmd = Command::new(MK2FS_BIN);
     let status = cmd