diff --git a/Runtime/GuruCore/Runtime/Analytics/Analytics.TemplateDefine.cs b/Runtime/GuruCore/Runtime/Analytics/Analytics.TemplateDefine.cs
index 3c976d2..4d82f8f 100644
--- a/Runtime/GuruCore/Runtime/Analytics/Analytics.TemplateDefine.cs
+++ b/Runtime/GuruCore/Runtime/Analytics/Analytics.TemplateDefine.cs
@@ -529,7 +529,7 @@ namespace Guru
 			    { ParameterCurrency, currency },
 			    { "order_id", orderId },
 			    { "type", type },
-			    { "isfree", isFree ? 1 : 0 },
+			    { "isfree", isFree ? "1" : "0" },
 		    };
 		
 		    if(!string.IsNullOrEmpty(offerId))