diff --git a/tests/FilesT.cpp b/tests/FilesT.cpp
index d4ce5568..6a8dac59 100644
--- a/tests/FilesT.cpp
+++ b/tests/FilesT.cpp
@@ -580,4 +580,9 @@ TEST_CASE("[Files] Labels")
REQUIRE( ccLabels[0].second == "Gain" );
REQUIRE( ccLabels[1].first == 2 );
REQUIRE( ccLabels[1].second == "Other" );
+ const std::string xmlMidnam = synth.exportMidnam();
+ REQUIRE(xmlMidnam.find("") != xmlMidnam.npos);
+ REQUIRE(xmlMidnam.find("") != xmlMidnam.npos);
+ REQUIRE(xmlMidnam.find("") != xmlMidnam.npos);
+ REQUIRE(xmlMidnam.find("") != xmlMidnam.npos);
}