diff --git a/core-buffer/include/buffer_config.hpp b/core-buffer/include/buffer_config.hpp
index 443c360..253cc08 100644
--- a/core-buffer/include/buffer_config.hpp
+++ b/core-buffer/include/buffer_config.hpp
@@ -35,7 +35,7 @@ namespace core_buffer {
     const int WRITER_RB_BUFFER_SLOTS = 5;
 
     // How many frames to buffer before flushing to file.
-    const size_t WRITER_BUFFER_SIZE = 2;
+    const int WRITER_N_FRAMES_BUFFER = 1;
 
     // Number of pulses between each statistics print out.
     const size_t STATS_MODULO = 100;
diff --git a/core-buffer/src/SFWriter.cpp b/core-buffer/src/SFWriter.cpp
index 958aa3e..05c6db5 100644
--- a/core-buffer/src/SFWriter.cpp
+++ b/core-buffer/src/SFWriter.cpp
@@ -103,7 +103,7 @@ void SFWriter::write(const DetectorFrame* metadata, const char* data) {
                 H5P_DEFAULT,
                 0,
                 offset,
-                MODULE_N_BYTES * n_modules_,
+                MODULE_N_BYTES * n_modules_ * WRITER_N_FRAMES_BUFFER,
                 data))
         {
             stringstream error_message;