diff --git a/plugins/CuraEngineBackend/StartSliceJob.py b/plugins/CuraEngineBackend/StartSliceJob.py
index 9e53ce8b3a..7e01e96b06 100644
--- a/plugins/CuraEngineBackend/StartSliceJob.py
+++ b/plugins/CuraEngineBackend/StartSliceJob.py
@@ -123,6 +123,9 @@ class StartSliceJob(Job):
             Job.yieldThread()
 
         for changed_setting_key in changed_setting_keys:
+            if not stack.getProperty(changed_setting_key, "enabled"):
+                continue
+
             validation_state = stack.getProperty(changed_setting_key, "validationState")
 
             if validation_state is None: