diff --git a/modules/juce_gui_basics/windows/juce_ThreadWithProgressWindow.cpp b/modules/juce_gui_basics/windows/juce_ThreadWithProgressWindow.cpp
index 0c568e8838..cf6358cbad 100644
--- a/modules/juce_gui_basics/windows/juce_ThreadWithProgressWindow.cpp
+++ b/modules/juce_gui_basics/windows/juce_ThreadWithProgressWindow.cpp
@@ -87,7 +87,7 @@ void ThreadWithProgressWindow::timerCallback()
 {
     bool threadStillRunning = isThreadRunning();
 
-    if (! (threadStillRunning && alertWindow->isCurrentlyModal()))
+    if (! (threadStillRunning && alertWindow->isCurrentlyModal (false)))
     {
         stopTimer();
         stopThread (timeOutMsWhenCancelling);