diff --git a/fs_mgr/libsnapshot/libsnapshot_cow/writer_v3.cpp b/fs_mgr/libsnapshot/libsnapshot_cow/writer_v3.cpp
index 61124df8c..251b24e6a 100644
--- a/fs_mgr/libsnapshot/libsnapshot_cow/writer_v3.cpp
+++ b/fs_mgr/libsnapshot/libsnapshot_cow/writer_v3.cpp
@@ -110,6 +110,7 @@ void CowWriterV3::SetupHeaders() {
     header_.op_count = 0;
     header_.op_count_max = 0;
     header_.compression_algorithm = kCowCompressNone;
+    header_.max_compression_size = options_.compression_factor;
     return;
 }