--- a/src/XMLDocumentConstructor.h	Sat Mar 13 19:28:13 2021 +0100
+++ b/src/XMLDocumentConstructor.h	Sun Mar 14 19:58:35 2021 +0100
@@ -42,6 +42,7 @@
 
 		relpipe::in::asn1::lib::BasicASN1Reader reader;
 		reader.write(nullptr, 0); // FIXME: transfer data from input to reader + use DOMBuildingSAXContentHandler
+		reader.close();
 
 		parser->parse_stream(*input);
 	}