diff --git a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/progress/ProgressManager.java b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/progress/ProgressManager.java
index e9b35fe2010..b9a818b7271 100644
--- a/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/progress/ProgressManager.java
+++ b/bundles/org.eclipse.ui.workbench/eclipseui/org/eclipse/ui/internal/progress/ProgressManager.java
@@ -974,9 +974,10 @@ public void run(boolean fork, boolean cancelable, IRunnableWithProgress runnable
 			// Backward compatible code.
 			final ProgressMonitorJobsDialog dialog = new ProgressMonitorJobsDialog(
 					ProgressManagerUtil.getDefaultParent());
-			dialog.setOpenOnRun(false);
 			if (!shouldRunInBackground()) {
 				scheduleProgressMonitorJob(dialog);
+			} else {
+				dialog.setOpenOnRun(false);
 			}
 			dialog.run(fork, cancelable, runnable);
 			return;