diff --git a/src/text-editor-presenter.coffee b/src/text-editor-presenter.coffee
index 1540c2301..48d1596d6 100644
--- a/src/text-editor-presenter.coffee
+++ b/src/text-editor-presenter.coffee
@@ -8,6 +8,7 @@ class TextEditorPresenter
   startBlinkingCursorsAfterDelay: null
   stoppedScrollingTimeoutId: null
   mouseWheelScreenRow: null
+  scopedCharacterWidthsChangeCount: 0
 
   constructor: (params) ->
     {@model, @autoHeight, @explicitHeight, @contentFrameWidth, @scrollTop, @scrollLeft} = params