diff --git a/app/services/transformData.js b/app/services/transformData.js
index ab9f14c..c914001 100644
--- a/app/services/transformData.js
+++ b/app/services/transformData.js
@@ -4,7 +4,7 @@ function transformData(matchData) {
   let dataVersion = -1;
     
   // This is the original Dartfish format we used.
-  if (pointsData[0].hasOwnProperty('Position')) {
+  if (Object.prototype.hasOwnProperty.call(pointsData[0], 'Position')) {
     dataVersion = 0;
   }
   // This is the new format Leo made.