diff --git a/ttcn/LibIts_Interface.ttcn b/ttcn/LibIts_Interface.ttcn
index d51dda5ff04606991790ac93a7e5f105fba53e6d..0c9fe875c89962fee426d2152d40255884bd3b5f 100644
--- a/ttcn/LibIts_Interface.ttcn
+++ b/ttcn/LibIts_Interface.ttcn
@@ -14,8 +14,9 @@ module LibIts_Interface {
     // LibCommon
     import from LibCommon_Time {modulepar all};
     
-    // CAM ASN1 definitions
+    // ASN1 definitions
     import from CAM_PDU_Descriptions language "ASN.1:1997" all;
+    import from DENM_PDU_Descriptions language "ASN.1:1997" all;
     
 	group adapterInterface {
 	        
@@ -303,12 +304,14 @@ module LibIts_Interface {
 				 * @desc FA1 DENM Indication Primitive 
 				 */
 				type record DenmInd {
+				    DecentralizedEnvironmentalNotificationMessage msgIn
 				}
 				
 				/**
 				 * @desc FA1 DENM Request Primitive 
 				 */
 				type record DenmReq {
+				    DecentralizedEnvironmentalNotificationMessage msgOut
 				}
 						    
 			} // end fa1Primitives