diff --git a/source/android/src/eu/alebianco/air/extensions/analytics/functions/TrackData.java b/source/android/src/eu/alebianco/air/extensions/analytics/functions/TrackData.java
index b6a5c2b..53bda65 100644
--- a/source/android/src/eu/alebianco/air/extensions/analytics/functions/TrackData.java
+++ b/source/android/src/eu/alebianco/air/extensions/analytics/functions/TrackData.java
@@ -283,7 +283,7 @@ private FREObject trackTransaction(FREContext context, Tracker tracker, FREObjec
         if (shipping != null)
             builder.setShippingCostInMicros((long) (shipping * 1000000));
         if (tax != null)
-            builder.setShippingCostInMicros((long) (tax * 1000000));
+            builder.setTotalTaxInMicros((long) (tax * 1000000));
 
         Transaction transaction = builder.build();