diff --git a/docs/mapping-template-planner/README.md b/docs/mapping-template-planner/README.md
index 110dc05..1b2cf8a 100644
--- a/docs/mapping-template-planner/README.md
+++ b/docs/mapping-template-planner/README.md
@@ -1,3 +1,3 @@
 # Mapping Template Planner
 
-The mapping template planner allows you to build and test your mapping templates, wether they are VTL mapping templates, or JavaScript Resolvers.
+The mapping template planner allows you to build and test your mapping templates, whether they are VTL mapping templates, or JavaScript Resolvers.