diff --git a/docs/api-development/commodo/crash-course.md b/docs/api-development/commodo/crash-course.md
index 4da3d114e..1a313dc0f 100644
--- a/docs/api-development/commodo/crash-course.md
+++ b/docs/api-development/commodo/crash-course.md
@@ -133,7 +133,7 @@ const Dog = withFields({
   age: number({
     validate: value => {
       if (value && value < 2) {
-        throw new Error("Your dog is to young.");
+        throw new Error("Your dog is too young.");
       }
     }
   }),