diff --git a/core-buffer/include/jungfrau.hpp b/core-buffer/include/jungfrau.hpp
index b78bd84..9a60a02 100644
--- a/core-buffer/include/jungfrau.hpp
+++ b/core-buffer/include/jungfrau.hpp
@@ -58,7 +58,8 @@ struct ReplayModuleFrameBuffer {
     uint64_t daq_rec[core_buffer::REPLAY_READ_BUFFER_SIZE];
     uint64_t n_received_packets[core_buffer::EPLAY_READ_BUFFER_SIZE];
     bool is_frame_present[core_buffer::REPLAY_READ_BUFFER_SIZE];
-    uint64_t module_id;
+    bool is_good_frame[core_buffer::REPLAY_READ_BUFFER_SIZE];
+    uint16_t module_id;
     uint64_t data_n_bytes;
     uint16_t n_frames;