diff --git a/public_html/planeObject.js b/public_html/planeObject.js
index 77d6b4d..1671139 100644
--- a/public_html/planeObject.js
+++ b/public_html/planeObject.js
@@ -216,7 +216,7 @@ PlaneObject.prototype.getDataSource = function() {
 
     var emptyHexRegex = /^0*$/;
     // No position and no ICAO hex code - Mode A/C
-    if (this.hex === null || emptyHexRegex.test(this.hex)) {
+    if (emptyHexRegex.test(this.icao)) {
         return 'mode_ac';
     }