diff --git a/doc/common/section_keystone-concepts.xml b/doc/common/section_keystone-concepts.xml
index cb881d86cb..adb3f4f45f 100644
--- a/doc/common/section_keystone-concepts.xml
+++ b/doc/common/section_keystone-concepts.xml
@@ -6,7 +6,7 @@
   xml:id="keystone-concepts">
     <?dbhtml stop-chunking?>
     <title>OpenStack Identity concepts</title>
-    <para>The OpenStack<glossterm>Identity Service</glossterm> performs the
+    <para>The OpenStack <glossterm>Identity Service</glossterm> performs the
            following functions:</para>
     <itemizedlist spacing="compact">
         <listitem>