diff --git a/plugins/LayerView/LayerView.py b/plugins/LayerView/LayerView.py
index cd7a17a357..9725f2292d 100644
--- a/plugins/LayerView/LayerView.py
+++ b/plugins/LayerView/LayerView.py
@@ -135,8 +135,6 @@ class LayerView(View):
 
             self.currentLayerNumChanged.emit()
 
-    currentLayerNumChanged = Signal()
-
     def calculateMaxLayers(self):
         scene = self.getController().getScene()
         renderer = self.getRenderer() # TODO: @UnusedVariable
diff --git a/resources/qml/Preferences/GeneralPage.qml b/resources/qml/Preferences/GeneralPage.qml
index 2886f94d92..7e5b4efadc 100644
--- a/resources/qml/Preferences/GeneralPage.qml
+++ b/resources/qml/Preferences/GeneralPage.qml
@@ -246,7 +246,7 @@ UM.PreferencesPage
         UM.TooltipArea {
             width: childrenRect.width
             height: childrenRect.height
-            text: catalog.i18nc("@info:tooltip","Should objects be scaled up if they are extremely small?")
+            text: catalog.i18nc("@info:tooltip","An object may appear extremely small if its unit is for example in meters rather than millimeters. Should these objects be scaled up?")
 
             CheckBox
             {