diff --git a/docker/RATIONALE.md b/docker/RATIONALE.md
index d8bae5d..c992b94 100644
--- a/docker/RATIONALE.md
+++ b/docker/RATIONALE.md
@@ -5,4 +5,4 @@
 `build_image` is a script used to build Docker images per project. We need
 some details from the pom file for build arguments. Rather than require
 installing an XML parser or invoking Maven, this uses `sed` which is commonly
-present on developer laptions and CI nodes.
+present on developer laptops and CI nodes.