diff --git a/src/mcedit2/editortools/select.py b/src/mcedit2/editortools/select.py
index c3bfe39..12a1de1 100644
--- a/src/mcedit2/editortools/select.py
+++ b/src/mcedit2/editortools/select.py
@@ -186,7 +186,6 @@ class SelectionTool(EditorTool):
         self.overlayNode = scenegraph.Node()
         self.faceHoverNode = SelectionFaceNode()
         self.selectionNode = SelectionScene()
-        self.selectionNode.dimension = editorSession.currentDimension  # xxx dimensionDidChange
         self.overlayNode.addChild(self.selectionNode)
         self.overlayNode.addChild(self.faceHoverNode)
 
@@ -197,6 +196,11 @@ class SelectionTool(EditorTool):
 
         self.newSelectionNode = None
 
+        editorSession.dimensionChanged.connect(self.dimensionDidChange)
+
+    def dimensionDidChange(self):
+        self.selectionNode.dimension = self.editorSession.currentDimension
+
     def shapeDidChange(self):
         if self.currentSelection is not None:
             self.currentSelection = self.createShapedSelection(self.currentSelection)