diff --git a/functions b/functions
index fc87a55..89bbab2 100644
--- a/functions
+++ b/functions
@@ -21,6 +21,7 @@
 source ${FUNC_DIR}/inc/meta-config
 source ${FUNC_DIR}/inc/python
 source ${FUNC_DIR}/inc/rootwrap
+source ${FUNC_DIR}/inc/async
 
 # Save trace setting
 _XTRACE_FUNCTIONS=$(set +o | grep xtrace)