diff --git a/doc/install-guide-rst/source/neutron-concepts.rst b/doc/install-guide-rst/source/neutron-concepts.rst
index 4a9d9d7aa3..61895958f0 100644
--- a/doc/install-guide-rst/source/neutron-concepts.rst
+++ b/doc/install-guide-rst/source/neutron-concepts.rst
@@ -43,7 +43,7 @@ network through the gateway for the router.
 
 Additionally, you can allocate IP addresses on external networks to
 ports on the internal network. Whenever something is connected to a
-subnet, that connection is called a port.You can associate external
+subnet, that connection is called a port. You can associate external
 network IP addresses with ports to VMs. This way, entities on the
 outside network can access VMs.
 
diff --git a/doc/install-guide/section_neutron-concepts.xml b/doc/install-guide/section_neutron-concepts.xml
index 828f094b1e..0f5dc7eae5 100644
--- a/doc/install-guide/section_neutron-concepts.xml
+++ b/doc/install-guide/section_neutron-concepts.xml
@@ -44,7 +44,7 @@
     router.</para>
   <para>Additionally, you can allocate IP addresses on external
     networks to ports on the internal network. Whenever something is
-    connected to a subnet, that connection is called a port.You can
+    connected to a subnet, that connection is called a port. You can
     associate external network IP addresses with ports to VMs. This
     way, entities on the outside network can access VMs.</para>
   <para>Networking also supports <emphasis role="italic">security