diff --git a/src/ExportManager.h b/src/ExportManager.h
--- a/src/ExportManager.h
+++ b/src/ExportManager.h
@@ -24,6 +24,7 @@
 #include <QIODevice>
 #include <QPrinter>
 #include <QPixmap>
+#include <QDateTime>
 #include <QUrl>
 
 #include "PlatformBackends/ImageGrabber.h"
@@ -63,6 +64,7 @@
     bool isFileExists(const QUrl &url) const;
     void setPixmap(const QPixmap &pixmap);
     QPixmap pixmap() const;
+    void updatePixmapTimestamp();
     void setWindowTitle(const QString &windowTitle);
     QString windowTitle() const;
     ImageGrabber::GrabMode grabMode() const;
@@ -101,6 +103,7 @@
     bool isTempFileAlreadyUsed(const QUrl &url) const;
 
     QPixmap mSavePixmap;
+    QDateTime mPixmapTimestamp;
     QUrl mLastSavePath;
     QUrl mTempFile;
     QTemporaryDir *mTempDir;
diff --git a/src/ExportManager.cpp b/src/ExportManager.cpp
--- a/src/ExportManager.cpp
+++ b/src/ExportManager.cpp
@@ -104,6 +104,11 @@
     }
 }
 
+void ExportManager::updatePixmapTimestamp()
+{
+	mPixmapTimestamp = QDateTime::currentDateTime();
+}
+
 // native file save helpers
 
 QString ExportManager::saveLocation() const
@@ -170,7 +175,7 @@
 
 QString ExportManager::makeAutosaveFilename()
 {
-    const QDateTime timestamp = QDateTime::currentDateTime();
+    const QDateTime timestamp = mPixmapTimestamp;
     QString baseName = SpectacleConfig::instance()->autoSaveFilenameFormat();
 
     QString title;
diff --git a/src/SpectacleCore.cpp b/src/SpectacleCore.cpp
--- a/src/SpectacleCore.cpp
+++ b/src/SpectacleCore.cpp
@@ -183,6 +183,7 @@
 void SpectacleCore::screenshotUpdated(const QPixmap &pixmap)
 {
     mExportManager->setPixmap(pixmap);
+    mExportManager->updatePixmapTimestamp();
 
     switch (mStartMode) {
     case BackgroundMode: