diff --git a/common/lc_global.h b/common/lc_global.h
index ab72ffbf..a2a13126 100644
--- a/common/lc_global.h
+++ b/common/lc_global.h
@@ -1,4 +1,5 @@
-#pragma once
+#ifndef LC_GLOBAL_H
+#define LC_GLOBAL_H
 
 #ifdef __cplusplus
 
@@ -65,3 +66,5 @@ class lcMemFile;
 class lcDiskFile;
 
 #endif
+
+#endif // LC_GLOBAL_H
diff --git a/qt/lc_setsdatabasedialog.cpp b/qt/lc_setsdatabasedialog.cpp
index 07558bdf..cac28a70 100644
--- a/qt/lc_setsdatabasedialog.cpp
+++ b/qt/lc_setsdatabasedialog.cpp
@@ -69,7 +69,7 @@ lcSetsDatabaseDialog::lcSetsDatabaseDialog(QWidget* Parent)
 	connect(ui->SetsTree, SIGNAL(itemDoubleClicked(QTreeWidgetItem*, int)), this, SLOT(accept()));
 	connect(this, SIGNAL(finished(int)), this, SLOT(Finished(int)));
 #ifndef Q_OS_WIN
-	connect(&mNetworkManager, SIGNAL(finished(QNetworkReply*)), SLOT(DownloadFinished(lcHttpReply*)));
+	connect(&mNetworkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(DownloadFinished(QNetworkReply*)));
 #endif
 
 	mKeyListReply = RequestURL("http://www.leocad.org/rebrickable.json");
@@ -84,7 +84,7 @@ lcHttpReply* lcSetsDatabaseDialog::RequestURL(const QString& URL)
 {
 #ifdef Q_OS_WIN
 	lcHttpReply* Reply = new lcHttpReply(this, URL);
-	connect(Reply, &QThread::finished, [this, Reply] { DownloadFinished(Reply); });
+	connect(Reply, &QThread::finished, [this, Reply] { ProcessReply(Reply); });
 	Reply->start();
 	return Reply;
 #else
@@ -221,7 +221,12 @@ void lcSetsDatabaseDialog::on_SearchButton_clicked()
 	}
 }
 
-void lcSetsDatabaseDialog::DownloadFinished(lcHttpReply* Reply)
+void lcSetsDatabaseDialog::DownloadFinished(QNetworkReply* Reply)
+{
+	ProcessReply(Reply);
+}
+
+void lcSetsDatabaseDialog::ProcessReply(lcHttpReply* Reply)
 {
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
 	if (Reply == mKeyListReply)
diff --git a/qt/lc_setsdatabasedialog.h b/qt/lc_setsdatabasedialog.h
index bdd3f55b..f09eaaa9 100644
--- a/qt/lc_setsdatabasedialog.h
+++ b/qt/lc_setsdatabasedialog.h
@@ -68,13 +68,14 @@ public:
 	virtual bool eventFilter(QObject* Object, QEvent* Event) override;
 
 public slots:
-	void DownloadFinished(lcHttpReply* Reply);
+	void DownloadFinished(QNetworkReply* Reply);
 	void on_SearchButton_clicked();
 	void accept() override;
 	void Finished(int Result);
 
 protected:
 	lcHttpReply* RequestURL(const QString& URL);
+	void ProcessReply(lcHttpReply* Reply);
 
 #ifndef Q_OS_WIN
 	QNetworkAccessManager mNetworkManager;