diff --git a/lib/minimap-element.coffee b/lib/minimap-element.coffee
index f96ce79b..d67e97ac 100644
--- a/lib/minimap-element.coffee
+++ b/lib/minimap-element.coffee
@@ -323,7 +323,7 @@ class MinimapElement extends HTMLElement
       softWrapAtPreferredLineLength = atom.config.get('editor.softWrapAtPreferredLineLength')
       width = lineLength * @minimap.getCharWidth()
 
-      if softWrap && softWrapAtPreferredLineLength and lineLength and width < @width
+      if softWrap and softWrapAtPreferredLineLength and lineLength and width < @width
         @marginRight = width - @width
         canvasWidth = width
       else
diff --git a/spec/minimap-element-spec.coffee b/spec/minimap-element-spec.coffee
index c53c2ab3..d0046da9 100644
--- a/spec/minimap-element-spec.coffee
+++ b/spec/minimap-element-spec.coffee
@@ -562,6 +562,15 @@ describe 'MinimapElement', ->
           expect(minimapElement.offsetWidth).toBeCloseTo(editorElement.offsetWidth / 11, -1)
           expect(minimapElement.style.width).toEqual('')
 
+      describe 'and when preferredLineLength >= 16384', ->
+        beforeEach ->
+          atom.config.set 'minimap.preferredLineLength', 16384
+          nextAnimationFrame()
+
+        it 'adjusts the width of the minimap', ->
+          expect(minimapElement.offsetWidth).toBeCloseTo(editorElement.offsetWidth / 11, -1)
+          expect(minimapElement.style.width).toEqual('')
+
     describe 'when minimap.minimapScrollIndicator setting is true', ->
       beforeEach ->
         editor.setText(mediumSample)