1 files changed, 1 insertions, 1 deletions
diff --git a/src/cpl.cc b/src/cpl.cc
index 0e4fed89..f3e8f6dc 100644
--- a/src/cpl.cc
+++ b/src/cpl.cc
@@ -807,7 +807,7 @@ CPL::set_additional_subtitle_languages(vector<dcp::LanguageTag> const& langs)
 {
 	_additional_subtitle_languages.clear();
 	for (auto const& i: langs) {
-		_additional_subtitle_languages.push_back(i.to_string());
+		_additional_subtitle_languages.push_back(i.as_string());
 	}
 }