diff --git a/plugins/CuraEngineBackend/ProcessSlicedLayersJob.py b/plugins/CuraEngineBackend/ProcessSlicedLayersJob.py
index f7be2edc04..8aed28514b 100644
--- a/plugins/CuraEngineBackend/ProcessSlicedLayersJob.py
+++ b/plugins/CuraEngineBackend/ProcessSlicedLayersJob.py
@@ -172,7 +172,7 @@ class ProcessSlicedLayersJob(Job):
             for extruder in extruders:
                 material = extruder.findContainer({"type": "material"})
                 position = int(extruder.getMetaDataEntry("position", default="0"))  # Get the position
-                color_code = material.getMetaDataEntry("color_code")
+                color_code = material.getMetaDataEntry("color_code", default="#e0e000")
                 color = colorCodeToRGBA(color_code)
                 material_color_map[position, :] = color
         else: