diff --git a/cura/Machines/Models/QualityManagementModel.py b/cura/Machines/Models/QualityManagementModel.py
index 6e5b37bbfa..ab0101cfc6 100644
--- a/cura/Machines/Models/QualityManagementModel.py
+++ b/cura/Machines/Models/QualityManagementModel.py
@@ -6,6 +6,9 @@ from PyQt5.QtCore import Qt, pyqtSlot
 from UM.Qt.ListModel import ListModel
 
 
+#
+# This the QML model for the quality management page.
+#
 class QualityManagementModel(ListModel):
     NameRole = Qt.UserRole + 1
     IsReadOnlyRole = Qt.UserRole + 2
diff --git a/cura/Machines/Models/QualityProfilesModel.py b/cura/Machines/Models/QualityProfilesModel.py
index 3bfccd409d..6452f848ed 100644
--- a/cura/Machines/Models/QualityProfilesModel.py
+++ b/cura/Machines/Models/QualityProfilesModel.py
@@ -6,11 +6,12 @@ from PyQt5.QtCore import Qt
 from UM.Application import Application
 from UM.Logger import Logger
 from UM.Qt.ListModel import ListModel
+
 from cura.Machines.QualityManager import QualityGroup
 
 
 #
-# QML Model for all built-in quality profiles.
+# QML Model for all built-in quality profiles. This model is used for the drop-down quality menu.
 #
 class QualityProfilesModel(ListModel):
     NameRole = Qt.UserRole + 1