diff --git a/spec/display-buffer-spec.coffee b/spec/display-buffer-spec.coffee
index 62875804b..7076d0923 100644
--- a/spec/display-buffer-spec.coffee
+++ b/spec/display-buffer-spec.coffee
@@ -1038,6 +1038,7 @@ describe "DisplayBuffer", ->
       displayBuffer.manageScrollPosition = true
       displayBuffer.setLineHeightInPixels(10)
       displayBuffer.setDefaultCharWidth(10)
+      displayBuffer.updateAllScreenLines()
 
     it "disallows negative values", ->
       displayBuffer.setWidth(displayBuffer.getScrollWidth() + 100)
@@ -1062,6 +1063,7 @@ describe "DisplayBuffer", ->
       displayBuffer.setHorizontalScrollbarHeight(0)
       displayBuffer.setHeight(50)
       displayBuffer.setWidth(50)
+      displayBuffer.updateAllScreenLines()
 
     it "sets the scroll top and scroll left so the given screen position is in view", ->
       displayBuffer.scrollToScreenPosition([8, 20])
diff --git a/spec/editor-component-spec.coffee b/spec/editor-component-spec.coffee
index f1305774e..9d4bc66d8 100644
--- a/spec/editor-component-spec.coffee
+++ b/spec/editor-component-spec.coffee
@@ -62,6 +62,7 @@ describe "EditorComponent", ->
 
       node.style.height = editor.getLineCount() * lineHeightInPixels + 'px'
       node.style.width = '1000px'
+      editor.displayBuffer.updateAllScreenLines()
       component.measureScrollView()
       nextTick()
 
diff --git a/spec/editor-spec.coffee b/spec/editor-spec.coffee
index 05b84cc79..72baccbca 100644
--- a/spec/editor-spec.coffee
+++ b/spec/editor-spec.coffee
@@ -733,6 +733,7 @@ describe "Editor", ->
         editor.setHorizontalScrollbarHeight(0)
         editor.setHeight(5.5 * 10)
         editor.setWidth(5.5 * 10)
+        editor.displayBuffer.updateAllScreenLines()
 
       it "scrolls down when the last cursor gets closer than ::verticalScrollMargin to the bottom of the editor", ->
         expect(editor.getScrollTop()).toBe 0
@@ -1196,6 +1197,8 @@ describe "Editor", ->
           editor.setHeight(50)
           editor.setWidth(50)
           editor.setHorizontalScrollbarHeight(0)
+          editor.displayBuffer.updateAllScreenLines()
+
           expect(editor.getScrollTop()).toBe 0
 
           editor.setSelectedBufferRange([[5, 6], [6, 8]], autoscroll: true)
@@ -1230,6 +1233,7 @@ describe "Editor", ->
         editor.setDefaultCharWidth(10)
         editor.setHeight(50)
         editor.setWidth(50)
+        editor.displayBuffer.updateAllScreenLines()
 
         editor.addSelectionForBufferRange([[8, 10], [8, 15]])
         expect(editor.getScrollTop()).toBe 75