diff --git a/gui/main.py b/gui/main.py
index b741194..44fb45c 100644
--- a/gui/main.py
+++ b/gui/main.py
@@ -394,6 +394,9 @@ class PHControllerGUI(QMainWindow):
             self.auto_dose_timer.stop()
             self.send_pump_command(0)  # Turn off pump
             self.auto_dose_btn.setText("Automatisch dosieren")
+            # Re-enable manual pump controls
+            self.pump_on_btn.setEnabled(True)
+            self.pump_off_btn.setEnabled(True)
             return
             
         volume = self.volume_spin.value()