diff --git a/doc/tacker-guide.rst b/doc/tacker-guide.rst
index b0b06e6b4c..72b341d4af 100644
--- a/doc/tacker-guide.rst
+++ b/doc/tacker-guide.rst
@@ -83,7 +83,7 @@ Source credentials file.
 
 ::
 
-  $ source /etc/kolla/admin-openrc.sh
+  $ . /etc/kolla/admin-openrc.sh
 
 Create base neutron networks and glance images.
 
diff --git a/doc/zun-guide.rst b/doc/zun-guide.rst
index 655b4dd467..11b971628f 100644
--- a/doc/zun-guide.rst
+++ b/doc/zun-guide.rst
@@ -52,7 +52,7 @@ Source credentials file.
 
 ::
 
-  $ source /etc/kolla/admin-openrc.sh
+  $ . /etc/kolla/admin-openrc.sh
 
 Download and create a glance container image.