diff --git a/cura/Settings/ExtruderManager.py b/cura/Settings/ExtruderManager.py
index 78468acbcb..bfbf8247f8 100644
--- a/cura/Settings/ExtruderManager.py
+++ b/cura/Settings/ExtruderManager.py
@@ -22,7 +22,7 @@ class ExtruderManager(QObject):
     def __init__(self, parent = None):
         super().__init__(parent)
         self._extruder_trains = { } #Per machine, a dictionary of extruder container stack IDs.
-        self._active_extruder_index = -1
+        self._active_extruder_index = 0
         UM.Application.getInstance().globalContainerStackChanged.connect(self.__globalContainerStackChanged)
         self._addCurrentMachineExtruders()