diff --git a/src/modules/app_python3/apy_kemi.c b/src/modules/app_python3/apy_kemi.c
index 97b39dfd724..d053ac1b7de 100644
--- a/src/modules/app_python3/apy_kemi.c
+++ b/src/modules/app_python3/apy_kemi.c
@@ -82,7 +82,10 @@ int sr_kemi_config_engine_python(sip_msg_t *msg, int rtype, str *rname,
 			ret = apy_exec(msg, rname->s, NULL, 0);
 		}
 	} else if(rtype==ONSEND_ROUTE) {
-		ret = apy_exec(msg, "ksr_onsend_route", NULL, 0);
+		if(kemi_onsend_route_callback.len>0) {
+			ret = apy_exec(msg, kemi_onsend_route_callback.s, NULL, 0);
+		}
+		return 1;
 	} else if(rtype==EVENT_ROUTE) {
 		if(rname!=NULL && rname->s!=NULL) {
 			ret = apy_exec(msg, rname->s,