diff --git a/core-buffer/include/WriterH5Writer.hpp b/core-buffer/include/WriterH5Writer.hpp
index 0d6f783..bea866d 100644
--- a/core-buffer/include/WriterH5Writer.hpp
+++ b/core-buffer/include/WriterH5Writer.hpp
@@ -21,7 +21,6 @@ struct ImageMetadata
 class WriterH5Writer {
 
     const size_t n_frames_;
-    const size_t n_modules_;
     size_t current_write_index_;
 
     H5::H5File file_;
diff --git a/core-buffer/src/WriterH5Writer.cpp b/core-buffer/src/WriterH5Writer.cpp
index bb15a0d..0896448 100644
--- a/core-buffer/src/WriterH5Writer.cpp
+++ b/core-buffer/src/WriterH5Writer.cpp
@@ -14,7 +14,6 @@ WriterH5Writer::WriterH5Writer(
         const size_t n_frames,
         const size_t n_modules) :
         n_frames_(n_frames),
-        n_modules_(n_modules),
         current_write_index_(0)
 {
     file_ = H5::H5File(output_file, H5F_ACC_TRUNC);