diff --git a/doc/training-guides/module003-ch004-swift-building-blocks.xml b/doc/training-guides/module003-ch004-swift-building-blocks.xml
index bc85b4d100..60908cbe83 100644
--- a/doc/training-guides/module003-ch004-swift-building-blocks.xml
+++ b/doc/training-guides/module003-ch004-swift-building-blocks.xml
@@ -159,7 +159,7 @@
                 stored, by default, three times. Swift will place each
                 replica "as-uniquely-as-possible" to ensure both high
                 availability and high durability. This means that when
-                chosing a replica location, Swift will choose a server
+                choosing a replica location, Swift will choose a server
                 in an unused zone before an unused server in a zone
                 that already has a replica of the data.</para>
     <figure>