diff --git a/Lib/glyphsLib/classes.py b/Lib/glyphsLib/classes.py
index 0e9e5c33c..bb40b5ee2 100755
--- a/Lib/glyphsLib/classes.py
+++ b/Lib/glyphsLib/classes.py
@@ -3742,7 +3742,12 @@ def _is_master_layer(self):
 
     @property
     def name(self):
-        if self.associatedMasterId and self._is_master_layer and self.parent:
+        if (
+            self.associatedMasterId
+            and self._is_master_layer
+            and self.parent
+            and self.parent.parent
+        ):
             master = self.parent.parent.masterForId(self.associatedMasterId)
             if master:
                 return master.name