diff --git a/core-buffer/include/JFFileFormat.hpp b/core-buffer/include/JFFileFormat.hpp
index 44ae62c..7f027a0 100644
--- a/core-buffer/include/JFFileFormat.hpp
+++ b/core-buffer/include/JFFileFormat.hpp
@@ -16,7 +16,7 @@ struct JFFileFormat {
     uint64_t frame_id;
     uint32_t daq_rec;
     uint16_t n_recv_packets;
-    char* data[JUNGFRAU_DATA_BYTES_PER_FRAME];
+    char data[JUNGFRAU_DATA_BYTES_PER_FRAME];
 };
 #pragma pack(pop)