diff --git a/src/netopeerguid.c b/src/netopeerguid.c
index 19588a2..f936e50 100644
--- a/src/netopeerguid.c
+++ b/src/netopeerguid.c
@@ -3112,7 +3112,7 @@
         DEBUG("creating temporal NC session.");
         temp_session = nc_connect_ssh_channel(locked_session->session, NULL);
         if (temp_session != NULL) {
-            rpc = nc_rpc_subscribe(NULL, NULL, nc_time2datetime(start, NULL), nc_time2datetime(stop, NULL), NC_PARAMTYPE_CONST);
+            rpc = nc_rpc_subscribe(NULL, NULL, nc_time2datetime(start, NULL, NULL), nc_time2datetime(stop, NULL, NULL), NC_PARAMTYPE_CONST);
             if (rpc == NULL) {
                 DEBUG("UNLOCK mutex %s", __func__);
                 pthread_mutex_unlock(&locked_session->lock);
diff --git a/src/notification_server.c b/src/notification_server.c
index 91df83e..633936b 100644
--- a/src/notification_server.c
+++ b/src/notification_server.c
@@ -564,8 +564,8 @@
 
     DEBUG("Prepare to execute subscription.");
     /* create requests */
-    rpc = nc_rpc_subscribe(stream, NULL, (start_time == -1) ? NULL : nc_time2datetime(start, NULL),
-                           (stop_time == 0) ? NULL : nc_time2datetime(stop, NULL), NC_PARAMTYPE_CONST);
+    rpc = nc_rpc_subscribe(stream, NULL, (start_time == -1) ? NULL : nc_time2datetime(start, NULL, NULL),
+                           (stop_time == 0) ? NULL : nc_time2datetime(stop, NULL, NULL), NC_PARAMTYPE_CONST);
     if (rpc == NULL) {
         ERROR("notifications: creating an rpc request failed.");
         goto operation_failed;