diff --git a/src/fios_gui.cpp b/src/fios_gui.cpp
index 7b13aa1db1..de66d6b890 100644
--- a/src/fios_gui.cpp
+++ b/src/fios_gui.cpp
@@ -269,7 +269,7 @@ private:
 	AbstractFileType abstract_filetype; /// Type of file to select.
 	SaveLoadOperation fop;        ///< File operation to perform.
 	FileList fios_items;          ///< Save game list.
-	FiosItem o_dir;
+	FiosItem o_dir;               ///< Original dir (home dir for this browser)
 	const FiosItem *selected;     ///< Selected game in #fios_items, or \c nullptr.
 	Scrollbar *vscroll;