diff --git a/examples/dc_user/main.c b/examples/dc_user/main.c
index 2a5341ca..3c885e55 100644
--- a/examples/dc_user/main.c
+++ b/examples/dc_user/main.c
@@ -231,7 +231,7 @@ void cyclic_task()
 
 		// write application time to master
 		clock_gettime(CLOCK_TO_USE, &time);
-		ecrt_master_application_time(master, timespec2u64(time));
+		ecrt_master_application_time(master, TIMESPEC2NS(time));
 
 		if (sync_ref_counter) {
 			sync_ref_counter--;