diff --git a/include/openmc/state_point.h b/include/openmc/state_point.h
index 2d92c935a..698ed2c93 100644
--- a/include/openmc/state_point.h
+++ b/include/openmc/state_point.h
@@ -26,7 +26,7 @@ void restart_set_keff();
 void write_unstructured_mesh_results();
 
 #ifdef OPENMC_MCPL
-void write_mcpl_source_point(const char *filename_, bool surf_source_bank = false);
+void write_mcpl_source_point(const char* filename, bool surf_source_bank = false);
 void write_mcpl_source_bank(mcpl_outfile_t file_id, bool surf_source_bank);
 #endif
 
diff --git a/src/settings.cpp b/src/settings.cpp
index 9098eb620..91a13289c 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -60,7 +60,7 @@ bool run_CE {true};
 bool source_latest {false};
 bool source_separate {false};
 bool source_write {true};
-bool source_mcpl_write {true};
+bool source_mcpl_write {false};
 bool surf_source_write {false};
 bool surf_mcpl_write {false};
 bool surf_source_read {false};
diff --git a/src/source.cpp b/src/source.cpp
index 1c46e4939..67a4a511d 100644
--- a/src/source.cpp
+++ b/src/source.cpp
@@ -381,7 +381,6 @@ FileSource::FileSource(mcpl_file_t mcpl_file)
     //mcpl stores time in ms
     site_.time=mcpl_particle->time*1e-3;
     site_.wgt=mcpl_particle->weight;
-    site_.delayed_group=0;
     sites_[i]=site_;
   }
   mcpl_close_file(mcpl_file);