diff --git a/doc/upstream-training/source/slides/howitsmade-official-projects.rst b/doc/upstream-training/source/slides/howitsmade-official-projects.rst
index 03f51409..bedd742f 100644
--- a/doc/upstream-training/source/slides/howitsmade-official-projects.rst
+++ b/doc/upstream-training/source/slides/howitsmade-official-projects.rst
@@ -53,7 +53,7 @@ Core and Optional Services
 ==========================
 - Core services are OpenStack projects and essential in every OpenStack-powered
   IaaS cloud or product
-- Optional services are also OpenStack projects but not necessarily need to
+- Optional services are also OpenStack projects but not necessarily needed to
   operate OpenStack depending on use cases
 
 .. note::