diff --git a/README.md b/README.md
index a38edb1fc05558f8a71fe5b3b1fe9d39d6404e99..de540f579429cb6f13e42c8b56a2789bf1a65478 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,7 @@ export TAGS_TO_MIRROR="IO_EVT, IO_SUM, IO_TSL, IO_TSL0, IO_TSL1, IO_TSL2, IO_TSS
 
 After that, use the following command to start the ``supervisor``:
 
+    source setenv.sh
     make start
 
 To see the status of the processes, use ``supervisorctl status``