diff --git a/common/python/nomadcore/parser_backend.py b/common/python/nomadcore/parser_backend.py
index f4c039194eb6819e4d4df574550b78886cb9ec63..ed9dd70b5fbfb108f92c4848ea3de133bb29a247 100644
--- a/common/python/nomadcore/parser_backend.py
+++ b/common/python/nomadcore/parser_backend.py
@@ -127,6 +127,8 @@ class JsonParseEventsWriterBackend(object):
             self.fileOut.write(",\n  \"parserStatus\": " + json.dumps(parserStatus, indent = 2, separators = (',', ':'), sort_keys=True))
         if parserErrors is not None and self.sessionParserErrors is None:
             self.fileOut.write(",\n  \"parserErrors\": " + json.dumps(parserErrors, indent = 2, separators = (',', ':'), sort_keys=True))
+        if parsingStats is not None:
+            self.fileOut.write(",\n  \"parsingStats\": " + json.dumps(parsingStats, indent = 4, separators = (',', ':'), sort_keys=True))
         self.fileOut.write("""
 }""")
         self.fileOut.flush()