diff --git a/docs/4.0/components/forms.md b/docs/4.0/components/forms.md
index eb3deb415c..80c5db5470 100644
--- a/docs/4.0/components/forms.md
+++ b/docs/4.0/components/forms.md
@@ -684,7 +684,7 @@ Here's how form validation works with Bootstrap:
- As a fallback, `.is-invalid` and `.is-valid` classes may be used instead of the pseudo-classes for [server side validation](#server-side). They do not require a `.was-validated` parent class.
- Due to constraints in how CSS works, we cannot (at present) apply styles to a `