diff --git a/src/directives/mwlDraggable.js b/src/directives/mwlDraggable.js
index <HASH>..<HASH> 100644
--- a/src/directives/mwlDraggable.js
+++ b/src/directives/mwlDraggable.js
@@ -77,7 +77,7 @@ angular
             default:
           }
 
-          if (!$window.getComputedStyle(elm[0]).position) {
+          if ($window.getComputedStyle(elm[0]).position === 'static') {
             elm.css('position', 'relative');
           }
Fix z-index of events being dragged on the year and month views