diff --git a/parser/parser-phonopy/Get_Force_Constants.py b/parser/parser-phonopy/Get_Force_Constants.py
index 8bde5bf88d0615f679ccc84932e019e1c5de2e0a..0d9dd7c04b6eb81646e47bb3c1fab04fd72e3b87 100644
--- a/parser/parser-phonopy/Get_Force_Constants.py
+++ b/parser/parser-phonopy/Get_Force_Constants.py
@@ -49,6 +49,7 @@ def parse(name):
     sysrefs = Parse.openSection("section_system_to_system_refs")
     Parse.addValue("system_to_system_kind", "subsystem")
     Parse.addValue("system_to_system_ref", Basesystem)
+    Parse.closeSection("section_system_to_system_refs", sysrefs)
     Parse.addArrayValues("configuration_periodic_dimensions", pbc)
     Parse.addArrayValues("atom_labels", super_sym)
     Parse.addArrayValues("atom_positions", super_pos)