diff --git a/src/source.cpp b/src/source.cpp
index 87644f054..0efaf52ba 100644
--- a/src/source.cpp
+++ b/src/source.cpp
@@ -342,7 +342,7 @@ void initialize_source()
     write_message("Writing out initial source...", 5);
     std::string filename = settings::path_output + "initial_source.h5";
     hid_t file_id = file_open(filename, 'w', true);
-    write_source_bank(file_id);
+    write_source_bank(file_id, false);
     file_close(file_id);
   }
 }
diff --git a/src/state_point.cpp b/src/state_point.cpp
index 63baf9c77..0f7b11840 100644
--- a/src/state_point.cpp
+++ b/src/state_point.cpp
@@ -311,7 +311,7 @@ openmc_statepoint_write(const char* filename, bool* write_source)
   // Write the source bank if desired
   if (write_source_) {
     if (mpi::master || parallel) file_id = file_open(filename_, 'a', true);
-    write_source_bank(file_id);
+    write_source_bank(file_id, false);
     if (mpi::master || parallel) file_close(file_id);
   }