diff --git a/core-buffer/include/jungfrau.hpp b/core-buffer/include/jungfrau.hpp
index 68c9656..86344e9 100644
--- a/core-buffer/include/jungfrau.hpp
+++ b/core-buffer/include/jungfrau.hpp
@@ -31,4 +31,15 @@ struct jungfrau_packet {
 };
 #pragma pack(pop)
 
+#pragma pack(push)
+#pragma pack(1)
+struct ModuleFrame {
+    uint64_t pulse_id;
+    uint64_t frame_index;
+    uint32_t daq_rec;
+    uint16_t n_received_packets;
+    uint16_t module_id;
+};
+#pragma pack(pop)
+
 #endif
\ No newline at end of file