diff --git a/core-writer/test/test_H5WriteModule.cpp b/core-writer/test/test_H5WriteModule.cpp
index ce62528..a2ccf0a 100644
--- a/core-writer/test/test_H5WriteModule.cpp
+++ b/core-writer/test/test_H5WriteModule.cpp
@@ -49,7 +49,9 @@ TEST(H5WriteModule, basic_interaction)
 
     RingBuffer<FrameMetadata> ring_buffer(10);
     ring_buffer.initialize(image_n_bytes);
-    H5WriteModule h5_write_module(ring_buffer, {}, format);
+
+    std::unordered_map<std::string, HeaderDataType> header_map;
+    H5WriteModule h5_write_module(ring_buffer, header_map, format);
 
     ASSERT_FALSE(h5_write_module.is_writing());
     h5_write_module.start_writing("ignore_out.h5", 5);
diff --git a/core-writer/test/test_ProcessManager.cpp b/core-writer/test/test_ProcessManager.cpp
index df983ae..756660b 100644
--- a/core-writer/test/test_ProcessManager.cpp
+++ b/core-writer/test/test_ProcessManager.cpp
@@ -9,8 +9,10 @@ TEST(ProcessManager, basic_interaction)
     TestH5Format format("start_dataset");
     RingBuffer<FrameMetadata> ring_buffer(10);
 
-    ZmqRecvModule recv_module(ring_buffer, {});
-    H5WriteModule write_module(ring_buffer, {}, format);
+    std::unordered_map<std::string, HeaderDataType> header_map;
+
+    ZmqRecvModule recv_module(ring_buffer, header_map);
+    H5WriteModule write_module(ring_buffer, header_map, format);
 
     ProcessManager manager(write_module, recv_module);