diff --git a/spec/editor-component-spec.coffee b/spec/editor-component-spec.coffee
index 18a2b76e0..a92b9e83e 100644
--- a/spec/editor-component-spec.coffee
+++ b/spec/editor-component-spec.coffee
@@ -3,7 +3,7 @@ ReactEditorView = require '../src/react-editor-view'
 nbsp = String.fromCharCode(160)
 
 describe "EditorComponent", ->
-  [editor, wrapperView, component, node, verticalScrollbarNode, horizontalScrollbarNode] = []
+  [contentNode, editor, wrapperView, component, node, verticalScrollbarNode, horizontalScrollbarNode] = []
   [lineHeightInPixels, charWidth, delayAnimationFrames, nextAnimationFrame] = []
 
   beforeEach ->
@@ -26,6 +26,9 @@ describe "EditorComponent", ->
       atom.project.open('sample.js').then (o) -> editor = o
 
     runs ->
+      contentNode = document.querySelector('#jasmine-content')
+      contentNode.style.width = '1000px'
+
       wrapperView = new ReactEditorView(editor)
       wrapperView.attachToDom()
       {component} = wrapperView
@@ -38,6 +41,9 @@ describe "EditorComponent", ->
       verticalScrollbarNode = node.querySelector('.vertical-scrollbar')
       horizontalScrollbarNode = node.querySelector('.horizontal-scrollbar')
 
+  afterEach ->
+    contentNode.style.width = ''
+
   describe "line rendering", ->
     it "renders only the currently-visible lines", ->
       node.style.height = 4.5 * lineHeightInPixels + 'px'