diff --git a/src/pane-container-view.coffee b/src/pane-container-view.coffee
index 8f84be5be..c80cbf9ba 100644
--- a/src/pane-container-view.coffee
+++ b/src/pane-container-view.coffee
@@ -112,7 +112,7 @@ class PaneContainerView extends View
     @nearestPaneInDirection('right')?.focus()
 
   nearestPaneInDirection: (direction) ->
-    distance: (pointA, pointB) ->
+    distance = (pointA, pointB) ->
       x = pointB.x - pointA.x
       y = pointB.y - pointA.y
       Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2))