diff --git a/src/SluDelayCalculator.py b/src/SluDelayCalculator.py
index 00014cff6a9dafdc4fef442ad4dbdabf548a1805..5158fc9ae208d33a75300ce8d717c9b707bfa791 100644
--- a/src/SluDelayCalculator.py
+++ b/src/SluDelayCalculator.py
@@ -486,7 +486,7 @@ class MainWindow(QDialog):
             self.ddmeasure_sluseed_iniziale.setStyleSheet("background-color: rgb(200, 200, 200)")
             self.ddmeasure_sluseed_iniziale.setText('')
             self.scope6clearswaps.setStyleSheet("background-color: rgb(200, 200, 200)")
-        ret = QMessageBox.warning(None, 'Speak with them, please', 'You are going to move the laser delay, please notify to control room.')
+        ret = QMessageBox.warning(None, 'Speak with them, please', 'You are going to move the laser delay and you need to STOP the Delay correlation minimizer. Please notify to control room.')
         #timer
         self.timer = QBasicTimer()
         self.timer.start(1000, self)
@@ -745,7 +745,7 @@ class MainWindow(QDialog):
         devprodic["trls8"].write_attribute("Speed", -1)
         devprodic["trls4"].write_attribute("Speed", 1)
         self.timer.stop()
-        ret = QMessageBox.warning(None, 'Trigger reference file', 'Do not forget to save the new trigger reference file!')
+        ret = QMessageBox.warning(None, 'Trigger reference file', 'Please notify to control room that the time 0 is done and they can start again the delay correlation minimizer (if it was on). Also do not forget to save the new trigger reference file!')
 
     def calcola(self): # muovi SLU
         print('>>>> SLU >>>>')