diff --git a/js/flickity.js b/js/flickity.js
index fe4d45c..fedfd27 100644
--- a/js/flickity.js
+++ b/js/flickity.js
@@ -761,9 +761,17 @@ proto.checkVisibility = function() {
   var viewportX = this.viewport.getBoundingClientRect().x;
   var viewportWidth = this.viewport.offsetWidth;
 
+  // Lorenza pulls content that should be out of the viewport in to
+  // force slides on either side of the viewport. We need to offset
+  // the viewport by the maximum amount it can be pulled in 4px.
+  if (this.options.wrapAround) {
+    viewportWidth = viewportWidth - 4;
+  }
+
   this.cells.forEach(function (cell) {
     var cellX = cell.element.getBoundingClientRect().x - viewportX;
     var isVisible = (
+        (cellX > -1 && cellX < 1) ||
         (cellX + cell.size.innerWidth > viewportX) && (cellX + cell.size.innerWidth < viewportWidth) ||
         (cellX > viewportX) && (cellX < viewportWidth)
     );