diff --git a/vcl/source/app/timer.cxx b/vcl/source/app/timer.cxx
index 3011cb2..fafabe7 100644
--- a/vcl/source/app/timer.cxx
+++ b/vcl/source/app/timer.cxx
@@ -140,6 +140,7 @@ void Timer::ImplTimerCallbackProc()
 
                 // call Timeout
                 pTimerData->mbInTimeout = sal_True;
+                fprintf(stderr, "TICK\n");
                 pTimerData->mpSVTimer->Timeout();
                 pTimerData->mbInTimeout = sal_False;
             }