diff --git a/YACReaderLibrary/options_dialog.cpp b/YACReaderLibrary/options_dialog.cpp
index e155ff72..296f05af 100644
--- a/YACReaderLibrary/options_dialog.cpp
+++ b/YACReaderLibrary/options_dialog.cpp
@@ -98,6 +98,18 @@ OptionsDialog::OptionsDialog(QWidget *parent)
 
     connect(recentIntervalSlider, &QAbstractSlider::valueChanged, this, &OptionsDialog::numDaysToConsiderRecentChanged);
 
+    auto libraryUpdatesBox = new QGroupBox(tr("Library update"));
+
+    compareModifiedDateWhenUpdatingLibrariesCheck = new QCheckBox(tr("Compare the modified date of files when updating a library"));
+    connect(compareModifiedDateWhenUpdatingLibrariesCheck, &QCheckBox::clicked, this,
+            [=](bool checked) {
+                settings->setValue(COMPARE_MODIFIED_DATE_ON_LIBRARY_UPDATES, checked);
+            });
+
+    auto libraryUpdatesBoxLayout = new QVBoxLayout();
+    libraryUpdatesBoxLayout->addWidget(compareModifiedDateWhenUpdatingLibrariesCheck);
+    libraryUpdatesBox->setLayout(libraryUpdatesBoxLayout);
+
     // grid view background config
     useBackgroundImageCheck = new QCheckBox(tr("Enable background image"));
 
@@ -165,6 +177,7 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     generalLayout->addWidget(apiKeyBox);
     generalLayout->addWidget(comicInfoXMLBox);
     generalLayout->addWidget(recentlyAddedBox);
+    generalLayout->addWidget(libraryUpdatesBox);
     generalLayout->addStretch();
 
     tabWidget->addTab(generalW, tr("General"));
@@ -200,6 +213,8 @@ void OptionsDialog::restoreOptions(QSettings *settings)
 
     recentIntervalSlider->setValue(settings->value(NUM_DAYS_TO_CONSIDER_RECENT, 1).toInt());
 
+    compareModifiedDateWhenUpdatingLibrariesCheck->setChecked(settings->value(COMPARE_MODIFIED_DATE_ON_LIBRARY_UPDATES, false).toBool());
+
     bool useBackgroundImage = settings->value(USE_BACKGROUND_IMAGE_IN_GRID_VIEW, true).toBool();
 
     useBackgroundImageCheck->setChecked(useBackgroundImage);
diff --git a/YACReaderLibrary/options_dialog.h b/YACReaderLibrary/options_dialog.h
index 84466a24..a62c9dcd 100644
--- a/YACReaderLibrary/options_dialog.h
+++ b/YACReaderLibrary/options_dialog.h
@@ -41,6 +41,7 @@ private:
     QCheckBox *comicInfoXMLCheckbox;
     QSlider *recentIntervalSlider;
     QLabel *numDaysLabel;
+    QCheckBox *compareModifiedDateWhenUpdatingLibrariesCheck;
 };
 
 #endif
diff --git a/common/yacreader_global.h b/common/yacreader_global.h
index 160e908e..70afc4ed 100644
--- a/common/yacreader_global.h
+++ b/common/yacreader_global.h
@@ -9,6 +9,7 @@
 #define VERSION "9.13.0"
 
 #define IMPORT_COMIC_INFO_XML_METADATA "IMPORT_COMIC_INFO_XML_METADATA"
+#define COMPARE_MODIFIED_DATE_ON_LIBRARY_UPDATES "COMPARE_MODIFIED_DATE_ON_LIBRARY_UPDATES"
 
 #define NUM_DAYS_BETWEEN_VERSION_CHECKS "NUM_DAYS_BETWEEN_VERSION_CHECKS"
 #define LAST_VERSION_CHECK "LAST_VERSION_CHECK"