diff --git a/src/datareader.cpp b/src/datareader.cpp
index 17b10c7..c15bf09 100644
--- a/src/datareader.cpp
+++ b/src/datareader.cpp
@@ -187,6 +187,8 @@ TagLib::File* DataReader::getFileByMimeType(QString file)
 
 void DataReader::readFile(QString file)
 {
+    // Is oFile used somewhere? (I failed to find a location.)
+    // If not, what is this new line good for?  For details, see PR #75.
     QString oFile = file;
 
     file.remove("file://");