diff --git a/core-buffer/include/formats.hpp b/core-buffer/include/formats.hpp
index 9c83b88..933c7b5 100644
--- a/core-buffer/include/formats.hpp
+++ b/core-buffer/include/formats.hpp
@@ -10,7 +10,7 @@ struct ImageMetadataBuffer
     uint32_t daq_rec[core_buffer::WRITER_DATA_CACHE_N_IMAGES];
     uint8_t is_good_frame[core_buffer::WRITER_DATA_CACHE_N_IMAGES];
     uint64_t data_n_bytes[core_buffer::WRITER_DATA_CACHE_N_IMAGES];
-    uint16_t n_pulses_in_buffer;
+    uint16_t n_images;
 };
 
 struct ImageMetadata