diff --git a/src/simulation.cpp b/src/simulation.cpp
index d7292cb9d..9c19c2106 100644
--- a/src/simulation.cpp
+++ b/src/simulation.cpp
@@ -407,6 +407,13 @@ void finalize_batch()
     auto filename = settings::path_output + "surface_source.h5";
     write_source_point(filename.c_str(), true);
   }
+
+  if(settings::surf_mcpl_write && simulation::current_batch == settings::n_batches){
+    auto filename = settings::path_output + ".mcpl";
+    write_mcplt_source_point(filename.c_str(), true);
+  }
+
+
 }
 
 void initialize_generation()