diff --git a/chisel/playground/src/ctrl/Ctrl.scala b/chisel/playground/src/ctrl/Ctrl.scala
index 5ce6328..67b5e99 100644
--- a/chisel/playground/src/ctrl/Ctrl.scala
+++ b/chisel/playground/src/ctrl/Ctrl.scala
@@ -28,7 +28,7 @@ class Ctrl extends Module {
   io.fetchUnit.ctrlSignal.do_flush := io.executeUnit.flush
   io.decodeUnit.ctrlSignal.do_flush := io.executeUnit.flush ||
     !io.decodeUnit.ctrlSignal.allow_to_go && io.executeUnit.ctrlSignal.allow_to_go
-  io.executeUnit.ctrlSignal.do_flush   := io.executeUnit.flush
+  io.executeUnit.ctrlSignal.do_flush   := false.B
   io.memoryUnit.ctrlSignal.do_flush    := false.B
   io.writeBackUnit.ctrlSignal.do_flush := false.B