diff --git a/YACReaderLibrary/library_window.cpp b/YACReaderLibrary/library_window.cpp
index c85cf2dd..d818ab71 100644
--- a/YACReaderLibrary/library_window.cpp
+++ b/YACReaderLibrary/library_window.cpp
@@ -1517,7 +1517,8 @@ void LibraryWindow::addFolderToCurrentIndex()
                                                   tr("Folder name:"), QLineEdit::Normal,
                                                   "", &ok);
 
-    QRegExp invalidChars("\/\\\:\*\?\"\<\>\|");//TODO this regexp is not properly written
+    //chars not supported in a folder's name: / \ : * ? " < > |
+    QRegExp invalidChars("\\/\\:\\*\\?\\\"\\<\\>\\|\\\\");//TODO this regexp is not properly written
     bool isValid = !newFolderName.contains(invalidChars);
 
     if (ok && !newFolderName.isEmpty() && isValid)
diff --git a/YACReaderLibrary/yacreader_navigation_controller.cpp b/YACReaderLibrary/yacreader_navigation_controller.cpp
index 5a3cb0a9..65b500de 100644
--- a/YACReaderLibrary/yacreader_navigation_controller.cpp
+++ b/YACReaderLibrary/yacreader_navigation_controller.cpp
@@ -205,7 +205,6 @@ void YACReaderNavigationController::selectedIndexFromHistory(const YACReaderLibr
         libraryWindow->clearSearchFilter();
     }
 
-    //TODO more info about mi is needed (folder, lists...)
     loadIndexFromHistory(sourceContainer);
 }