diff --git a/RFXtoRP_PrepOrder_ShipFromAcked.ftl b/RFXtoRP_PrepOrder_ShipFromAcked.ftl
index 6a4ab2c..cf47d44 100644
--- a/RFXtoRP_PrepOrder_ShipFromAcked.ftl
+++ b/RFXtoRP_PrepOrder_ShipFromAcked.ftl
@@ -4,7 +4,7 @@
 	    "ProjectID": "${projectRP}"
 	  },
 	  "ID": {
-	       "RefID": "${id.refid}"
+	       "RefID": "${id.refid?json_string}"
 	  },
 
 	  "Payload": {
diff --git a/RFXtoRP_Receipt_ShipToAcked.ftl b/RFXtoRP_Receipt_ShipToAcked.ftl
index ae00aae..a094aeb 100644
--- a/RFXtoRP_Receipt_ShipToAcked.ftl
+++ b/RFXtoRP_Receipt_ShipToAcked.ftl
@@ -4,7 +4,7 @@
 	    "ProjectID": "${projectRP}"	   
 	  },
 	  "ID": {
-	       "RefID": "${id.refid}"
+	       "RefID": "${id.refid?json_string}"
 	  },
 	   
 	  "Payload": {