diff --git a/src/cursors-component.coffee b/src/cursors-component.coffee
index e762adef3..62c471c49 100644
--- a/src/cursors-component.coffee
+++ b/src/cursors-component.coffee
@@ -34,7 +34,7 @@ CursorsComponent = React.createClass
 
   shouldComponentUpdate: (newProps, newState) ->
     not newState.blinkOff is @state.blinkOff or
-      not isEqualForProperties(newProps, @props, 'cursorScreenRanges', 'scrollTop', 'scrollLeft', 'lineHeightInPixels')
+      not isEqualForProperties(newProps, @props, 'cursorScreenRanges', 'scrollTop', 'scrollLeft', 'lineHeightInPixels', 'defaultCharWidth')
 
   componentWillUpdate: (newProps) ->
     @pauseCursorBlinking() if @props.cursorScreenRanges and not isEqual(newProps.cursorScreenRanges, @props.cursorScreenRanges)
diff --git a/src/editor-component.coffee b/src/editor-component.coffee
index fe1b6d0af..d46c0e769 100644
--- a/src/editor-component.coffee
+++ b/src/editor-component.coffee
@@ -85,7 +85,7 @@ EditorComponent = React.createClass
 
         CursorsComponent {
           editor, scrollTop, scrollLeft, cursorScreenRanges, cursorBlinkPeriod, cursorBlinkResumeDelay,
-          fontSize, fontFamily, lineHeightInPixels
+          lineHeightInPixels, defaultCharWidth
         }
         LinesComponent {
           ref: 'lines', editor, lineHeightInPixels, defaultCharWidth,