diff --git a/src/fs/Charset.cxx b/src/fs/Charset.cxx
index 5a207fc0d..e9ddc5659 100644
--- a/src/fs/Charset.cxx
+++ b/src/fs/Charset.cxx
@@ -44,6 +44,7 @@ SetFSCharset(const char *charset)
 	assert(charset != nullptr);
 	assert(fs_converter == nullptr);
 
+	fs_charset = charset;
 	fs_converter = IcuConverter::Create(charset);
 	assert(fs_converter != nullptr);
 }