diff --git a/doc/contributor-guide/source/rst-conv/inline-markups.rst b/doc/contributor-guide/source/rst-conv/inline-markups.rst
index a88f3f98ce..24e28475f4 100644
--- a/doc/contributor-guide/source/rst-conv/inline-markups.rst
+++ b/doc/contributor-guide/source/rst-conv/inline-markups.rst
@@ -92,7 +92,7 @@ A term that appears in the glossary.
 |                        | or ``:term:`services <service>```                 |
 +------------------------+---------------------------------------------------+
 | **Example of output**  | OpenStack provides an :term:`IaaS` solution       |
-|                        | through a variety of complemental                 |
+|                        | through a variety of complementary                |
 |                        | :term:`services <service>`.                       |
 +------------------------+---------------------------------------------------+
 
diff --git a/doc/install-guide/source/overview.rst b/doc/install-guide/source/overview.rst
index c6055e27d2..1eb561fee5 100644
--- a/doc/install-guide/source/overview.rst
+++ b/doc/install-guide/source/overview.rst
@@ -8,7 +8,7 @@ implementation, massive scalability, and a rich set of features. Cloud
 computing experts from around the world contribute to the project.
 
 OpenStack provides an :term:`Infrastructure-as-a-Service (IaaS)<IaaS>` solution
-through a variety of complemental services. Each service offers an
+through a variety of complementary services. Each service offers an
 :term:`Application Programming Interface (API)` that facilitates this
 integration.