diff --git a/site/content/docs/5.0/forms/floating-labels.md b/site/content/docs/5.0/forms/floating-labels.md
index 3163ea8e0c57..2012a4e824c3 100644
--- a/site/content/docs/5.0/forms/floating-labels.md
+++ b/site/content/docs/5.0/forms/floating-labels.md
@@ -61,7 +61,7 @@ To set a custom height on your `<textarea>`, do not use the `rows` attribute. In
 
 ## Selects
 
-Other than `.form-control`, floating labels are only available on `.form-select`s. They work in the same way, but unlike `<input>`s, they'll always show the `<label>` in its floated state.
+Other than `.form-control`, floating labels are only available on `.form-select`s. They work in the same way, but unlike `<input>`s, they'll always show the `<label>` in its floated state. **Selects with `size` and `multiple` are not supported.**
 
 {{< example >}}
 <div class="form-floating">