diff --git a/src/lines-component.coffee b/src/lines-component.coffee
index 0cda90d5c..87e4e235e 100644
--- a/src/lines-component.coffee
+++ b/src/lines-component.coffee
@@ -13,7 +13,7 @@ module.exports =
 class LinesComponent extends TiledComponent
   placeholderTextDiv: null
 
-  constructor: ({@presenter, @hostElement, @useShadowDOM, visible, @domElementPool}) ->
+  constructor: ({@presenter, @hostElement, @useShadowDOM, visible, @domElementPool, @assert}) ->
     @domNode = document.createElement('div')
     @domNode.classList.add('lines')
     @tilesNode = document.createElement("div")
@@ -63,7 +63,7 @@ class LinesComponent extends TiledComponent
 
     @oldState.indentGuidesVisible = @newState.indentGuidesVisible
 
-  buildComponentForTile: (id) -> new LinesTileComponent({id, @presenter, @domElementPool})
+  buildComponentForTile: (id) -> new LinesTileComponent({id, @presenter, @domElementPool, @assert})
 
   buildEmptyState: ->
     {tiles: {}}
diff --git a/src/lines-tile-component.coffee b/src/lines-tile-component.coffee
index 627630e03..723591d9c 100644
--- a/src/lines-tile-component.coffee
+++ b/src/lines-tile-component.coffee
@@ -13,7 +13,7 @@ cloneObject = (object) ->
 
 module.exports =
 class LinesTileComponent
-  constructor: ({@presenter, @id, @domElementPool}) ->
+  constructor: ({@presenter, @id, @domElementPool, @assert}) ->
     @tokenIterator = new TokenIterator
     @measuredLines = new Set
     @lineNodesByLineId = {}
@@ -361,7 +361,7 @@ class LinesTileComponent
             rangeForMeasurement.setEnd(textNode, i + charLength)
           else
             rangeForMeasurement.setEnd(textNode, textNodeLength)
-            atom.assert false, "Expected index to be less than the length of text node while measuring", (error) =>
+            @assert false, "Expected index to be less than the length of text node while measuring", (error) =>
               editor = @presenter.model
               screenRow = tokenizedLine.screenRow
               bufferRow = editor.bufferRowForScreenRow(screenRow)
diff --git a/src/text-editor-component.coffee b/src/text-editor-component.coffee
index e207a4deb..d36cbbb05 100644
--- a/src/text-editor-component.coffee
+++ b/src/text-editor-component.coffee
@@ -85,7 +85,7 @@ class TextEditorComponent
     @hiddenInputComponent = new InputComponent
     @scrollViewNode.appendChild(@hiddenInputComponent.getDomNode())
 
-    @linesComponent = new LinesComponent({@presenter, @hostElement, @useShadowDOM, @domElementPool})
+    @linesComponent = new LinesComponent({@presenter, @hostElement, @useShadowDOM, @domElementPool, @assert})
     @scrollViewNode.appendChild(@linesComponent.getDomNode())
 
     @horizontalScrollbarComponent = new ScrollbarComponent({orientation: 'horizontal', onScroll: @onHorizontalScroll})