diff --git a/ide/outputfilter.pas b/ide/outputfilter.pas
index d63291042e..a52a89c089 100644
--- a/ide/outputfilter.pas
+++ b/ide/outputfilter.pas
@@ -300,6 +300,7 @@ begin
           EndUpdate;
         end;
         Application.ProcessMessages;
+        Application.Idle(false);
         BeginUpdate;
         EndUpdateNeeded:=true;
       end;