diff --git a/desktop-widgets/mainwindow.cpp b/desktop-widgets/mainwindow.cpp
index d73aa799a..00ccc893f 100644
--- a/desktop-widgets/mainwindow.cpp
+++ b/desktop-widgets/mainwindow.cpp
@@ -77,10 +77,12 @@
 #include "plugins/facebook/facebookconnectwidget.h"
 #endif
 
-QProgressDialog *progressDialog = NULL;
-bool progressDialogCanceled = false;
+namespace {
+	QProgressDialog *progressDialog = nullptr;
+	bool progressDialogCanceled = false;
+	int progressCounter = 0;
+}
 
-static int progressCounter = 0;
 
 extern "C" int updateProgress(const char *text)
 {