diff --git a/spec/text-editor-component-spec.coffee b/spec/text-editor-component-spec.coffee
index 2869ffd6c..84d8cc1c7 100644
--- a/spec/text-editor-component-spec.coffee
+++ b/spec/text-editor-component-spec.coffee
@@ -602,7 +602,7 @@ describe "TextEditorComponent", ->
       expect(lineNode.textContent).toBe(text)
 
     it "gives the line numbers container the same height as the wrapper node", ->
-      linesNode = componentNode.querySelector(".lines")
+      linesNode = componentNode.querySelector(".line-numbers")
 
       wrapperNode.style.height = 6.5 * lineHeightInPixels + 'px'
       component.measureDimensions()