diff --git a/doc/install-guide/object-storage/section_object-storage-install.xml b/doc/install-guide/object-storage/section_object-storage-install.xml
index 3e9e0d0c86..a3e5f1a3c2 100644
--- a/doc/install-guide/object-storage/section_object-storage-install.xml
+++ b/doc/install-guide/object-storage/section_object-storage-install.xml
@@ -95,7 +95,7 @@
   --publicurl 'http://<replaceable>controller</replaceable>:8080/v1/AUTH_%(tenant_id)s' \
   --internalurl 'http://<replaceable>controller</replaceable>:8080/v1/AUTH_%(tenant_id)s' \
   --adminurl http://<replaceable>controller</replaceable>:8080 \
-  -region regionOne</userinput>
+  --region regionOne</userinput>
 <computeroutput>+-------------+---------------------------------------------------+
 |   Property  |                       Value                       |
 +-------------+---------------------------------------------------+