diff --git a/v1/resources/instance_operation.cfc b/v1/resources/instance_operation.cfc
index a2504b9..085f788 100644
--- a/v1/resources/instance_operation.cfc
+++ b/v1/resources/instance_operation.cfc
@@ -141,7 +141,7 @@
 				<m:field>sop.label</m:field>
 				<m:field>sop.data_type</m:field>
 				<m:field>null as data_descriptor</m:field>
-				<m:field formatter=#function(x){return listToArray(x);}#>sop.value_list</m:field>
+				<m:field formatter=#function(x){return listToArray(x);}# type="list">sop.value_list</m:field>
 				<m:field>sop.ref_svc_id</m:field>
 				<m:field>sop.func</m:field>
 				<m:field formatter=#request.castToBool#>sop.is_required</m:field>
diff --git a/v1/resources/instance_operation_cfs_param.cfc b/v1/resources/instance_operation_cfs_param.cfc
index b4ba2fd..50eba2e 100644
--- a/v1/resources/instance_operation_cfs_param.cfc
+++ b/v1/resources/instance_operation_cfs_param.cfc
@@ -467,7 +467,7 @@ arguments.requestArguments.specificationId=usrCustomerInfo.specificationId; //In
 				<m:field>sop.svc_operation_cfs_param</m:field>
 				<m:field>sop.data_type</m:field>
 				<m:field>null as data_descriptor</m:field>
-				<m:field formatter=#function(x){return listToArray(x);}#>sop.value_list</m:field>
+				<m:field formatter=#function(x){return listToArray(x);}# type="list">sop.value_list</m:field>
 				<m:field>u.login as creator_login</m:field>
 				<m:field>u.shortname as creator_shortname</m:field>
 				<m:field formatter=#request.castToBool#>sop.is_sensitive</m:field>
diff --git a/v1/resources/svc_operation.cfc b/v1/resources/svc_operation.cfc
index 17ee649..f0cfa95 100644
--- a/v1/resources/svc_operation.cfc
+++ b/v1/resources/svc_operation.cfc
@@ -36,7 +36,7 @@
 				<m:field>p.svc_operation_cfs_param</m:field>
 				<m:field>p.label</m:field>
 				<m:field>p.data_type</m:field>
-				<m:field formatter=#function(x){return listToArray(x);}#>p.value_list</m:field>
+				<m:field formatter=#function(x){return listToArray(x);}# type="list">p.value_list</m:field>
 				<m:field>p.ref_svc_id</m:field>
 				<m:field formatter=#request.castToBool#>p.is_required</m:field>
 				<m:field>p.default_value</m:field><!--- can be overridden bu default_compute --->