diff --git a/pytec/tec_qt.py b/pytec/tec_qt.py
index 2992806..a520cba 100644
--- a/pytec/tec_qt.py
+++ b/pytec/tec_qt.py
@@ -103,7 +103,7 @@ class MainWindow(QtWidgets.QMainWindow, Ui_MainWindow):
             self.fan_group.setToolTip("")
         else:
             self.fan_group.setStyleSheet("background-color: yellow")
-            self.fan_group.setToolTip("Changing the fan settings of not recommended")
+            self.fan_group.setToolTip("fan_pwm not recommended on this hardware revision")
 
     def fan_update(self, fan_settings):
         logging.debug(fan_settings)