diff --git a/plugins/CuraEngineBackend/CuraEngineBackend.py b/plugins/CuraEngineBackend/CuraEngineBackend.py
index 72884ce5a5..ec9b050cdd 100644
--- a/plugins/CuraEngineBackend/CuraEngineBackend.py
+++ b/plugins/CuraEngineBackend/CuraEngineBackend.py
@@ -227,6 +227,16 @@ class CuraEngineBackend(Backend):
         if job.isCancelled() or job.getError() or job.getResult() == StartSliceJob.StartJobResult.Error:
             return
 
+        if job.getResult() == StartSliceJob.StartJobResult.MaterialIncompatible:
+            if Application.getInstance().getPlatformActivity:
+                self._error_message = Message(catalog.i18nc("@info:status",
+                                            "The selected material is imcompatible with the selected machine or configuration."))
+                self._error_message.show()
+                self.backendStateChange.emit(BackendState.Error)
+            else:
+                self.backendStateChange.emit(BackendState.NotStarted)
+            return
+
         if job.getResult() == StartSliceJob.StartJobResult.SettingError:
             if Application.getInstance().getPlatformActivity:
                 self._error_message = Message(catalog.i18nc("@info:status", "Unable to slice with the current settings. Please check your settings for errors."))
diff --git a/plugins/CuraEngineBackend/StartSliceJob.py b/plugins/CuraEngineBackend/StartSliceJob.py
index efc36e6150..d737e684ad 100644
--- a/plugins/CuraEngineBackend/StartSliceJob.py
+++ b/plugins/CuraEngineBackend/StartSliceJob.py
@@ -24,6 +24,7 @@ class StartJobResult(IntEnum):
     Error = 2
     SettingError = 3
     NothingToSlice = 4
+    MaterialIncompatible = 5
 
 
 ##  Formatter class that handles token expansion in start/end gcod
@@ -86,7 +87,7 @@ class StartSliceJob(Job):
             material = extruder_stack.findContainer({"type": "material"})
             if material:
                 if material.getMetaDataEntry("compatible") == False:
-                    self.setResult(StartJobResult.SettingError)
+                    self.setResult(StartJobResult.MaterialIncompatible)
                     return
 
         # Don't slice if there is a per object setting with an error value.