diff --git a/app/scanner2/dialog_input.cpp b/app/scanner2/dialog_input.cpp
index 1eff99bf..b087f058 100644
--- a/app/scanner2/dialog_input.cpp
+++ b/app/scanner2/dialog_input.cpp
@@ -10,6 +10,8 @@ Dialog_Input::Dialog_Input(QWidget *parent) :
     ui->setupUi(this);
     setWindowFlags(Qt::Dialog | Qt::WindowCloseButtonHint);
     setWindowTitle(tr("configuration scheme name change"));
+
+    ui->lineEdit->setMaxLength(20);
 }
 
 Dialog_Input::~Dialog_Input()
diff --git a/app/scanner2/mainwindow.cpp b/app/scanner2/mainwindow.cpp
index 1caf858d..87c3c18f 100644
--- a/app/scanner2/mainwindow.cpp
+++ b/app/scanner2/mainwindow.cpp
@@ -2309,7 +2309,7 @@ void MainWindow::on_act_save_triggered()
                     m_thumb->refreshItem(m_currIndex);
                 }
                 else
-                    m_thumb->updateItem(m_currIndex, savePath, false);
+                    m_thumb->updateItem(m_currIndex, savePath, true);
 
                 m_currFilePath = savePath;
                 m_modify = false;
diff --git a/modules/twainui/dialog_input.cpp b/modules/twainui/dialog_input.cpp
index 2a58be92..d90935f6 100644
--- a/modules/twainui/dialog_input.cpp
+++ b/modules/twainui/dialog_input.cpp
@@ -10,7 +10,7 @@ Dialog_Input::Dialog_Input(QWidget *parent) :
     ui->setupUi(this);
     setWindowFlags(Qt::Dialog | Qt::WindowCloseButtonHint);
 
-    ui->lineEdit->setMaxLength(50);
+    ui->lineEdit->setMaxLength(20);
 }
 
 Dialog_Input::~Dialog_Input()