diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index cd8d003..e0068b7 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -470,6 +470,7 @@ bool KeepassMainWindow::openDatabase(QString filename,bool IsAuto){
 		setStateFileModified(static_cast<Kdb3Database*>(db)->hasPasswordEncodingChanged());
 	}
 	else{
+		QFile::remove(filename+".lock");
 		setStatusBarMsg(StatusBarLoadingFailed);
 		QString error=db->getError();
 		if(error.isEmpty())error=tr("Unknown error while loading database.");