Fix crash while accessing a possible empty list.

1 files changed, 2 insertions, 3 deletions

diff --git a/installerbuilder/libinstaller/downloadarchivesjob.cpp b/installerbuilder/libinstaller/downloadarchivesjob.cpp
index 1db8a9c6c..c110ce839 100644
--- a/installerbuilder/libinstaller/downloadarchivesjob.cpp
+++ b/installerbuilder/libinstaller/downloadarchivesjob.cpp
@@ -300,9 +300,8 @@ void DownloadArchivesJob::registerFile()
     }
 
     m_temporaryFiles.insert(tempFile);
-    m_archivesToDownload.removeFirst();
-    QInstallerCreator::BinaryFormatEngineHandler::instance()->registerArchive(m_archivesToDownload.first()
-        .first, tempFile);
+    const QPair<QString, QString> pair = m_archivesToDownload.takeFirst();
+    QInstallerCreator::BinaryFormatEngineHandler::instance()->registerArchive(pair.first, tempFile);
 
     fetchNextArchiveHash();
 }