diff --git a/plover/output/keyboard.py b/plover/output/keyboard.py
index 58efabe4d..431717f6c 100644
--- a/plover/output/keyboard.py
+++ b/plover/output/keyboard.py
@@ -17,5 +17,6 @@ def delay(self):
 
   def with_delay(self, iterable):
     for item in iterable:
+      print("aaaa")
       yield item
       self.delay()