diff --git a/spec/display-buffer-spec.coffee b/spec/display-buffer-spec.coffee
index e85a05049..6e13ee8f4 100644
--- a/spec/display-buffer-spec.coffee
+++ b/spec/display-buffer-spec.coffee
@@ -5,12 +5,15 @@ describe "DisplayBuffer", ->
   [displayBuffer, buffer, changeHandler, tabLength] = []
   beforeEach ->
     tabLength = 2
-    atom.packages.activatePackage('language-javascript', sync: true)
+
     buffer = atom.project.bufferForPathSync('sample.js')
     displayBuffer = new DisplayBuffer({buffer, tabLength})
     changeHandler = jasmine.createSpy 'changeHandler'
     displayBuffer.on 'changed', changeHandler
 
+    waitsForPromise ->
+      atom.packages.activatePackage('language-javascript')
+
   afterEach ->
     displayBuffer.destroy()
     buffer.release()