diff --git a/kstars/ekos/align/align.cpp b/kstars/ekos/align/align.cpp
index 0d41663c18..ce3f251cf6 100644
--- a/kstars/ekos/align/align.cpp
+++ b/kstars/ekos/align/align.cpp
@@ -3086,8 +3086,8 @@ bool Align::loadAndSlew(const QByteArray &image, const QString &extension)
     m_ImageData.clear();
     QSharedPointer<FITSData> data;
     data.reset(new FITSData(), &QObject::deleteLater);
-    data->loadFromBuffer(image);
     data->setExtension(extension);
+    data->loadFromBuffer(image);
     m_AlignView->loadData(data);
     startSolving();
     return true;
diff --git a/kstars/ekos/auxiliary/darklibrary.cpp b/kstars/ekos/auxiliary/darklibrary.cpp
index b07c0f51c0..411607b397 100644
--- a/kstars/ekos/auxiliary/darklibrary.cpp
+++ b/kstars/ekos/auxiliary/darklibrary.cpp
@@ -532,11 +532,10 @@ void DarkLibrary::updateProperty(INDI::Property prop)
         return;
 
     auto bp = prop.getBLOB()->at(0);
+    m_CurrentDarkFrame->setExtension(QString(bp->getFormat()));
     QByteArray buffer = QByteArray::fromRawData(reinterpret_cast<char *>(bp->getBlob()), bp->getSize());
     if (!m_CurrentDarkFrame->loadFromBuffer(buffer))
     {
-        QString ext(QString(bp->getFormat()));
-        m_CurrentDarkFrame->setExtension(ext);
         m_FileLabel->setText(i18n("Failed to process dark data."));
         return;
     }
diff --git a/kstars/ekos/guide/externalguide/phd2.cpp b/kstars/ekos/guide/externalguide/phd2.cpp
index 00e7fc45d3..cc250c4760 100644
--- a/kstars/ekos/guide/externalguide/phd2.cpp
+++ b/kstars/ekos/guide/externalguide/phd2.cpp
@@ -1090,8 +1090,8 @@ void PHD2::processStarImage(const QJsonObject &jsonStarFrame)
     QSharedPointer<FITSData> fdata;
     QByteArray buffer = QByteArray::fromRawData(reinterpret_cast<char *>(fits_buffer), fits_buffer_size);
     fdata.reset(new FITSData(), &QObject::deleteLater);
-    fdata->loadFromBuffer(buffer);
     fdata->setExtension(QString("fits"));
+    fdata->loadFromBuffer(buffer);
     free(fits_buffer);
     m_GuideFrame->loadData(fdata);