diff --git a/src/typeahead/docs/readme.md b/src/typeahead/docs/readme.md
index a56623f570..5ea5c36fd3 100644
--- a/src/typeahead/docs/readme.md
+++ b/src/typeahead/docs/readme.md
@@ -80,7 +80,7 @@ This directive works with promises, meaning you can retrieve matches using the `
 * `typeahead-should-select($event)`
   <small class="badge">$</small>
   _(Default: `null`)_ -
-  A callback executed when an event occurs that might trigger a selection. Selection will only occur if this function returns true.
+  A callback executed when a `keyup` event that might trigger a selection occurs. Selection will only occur if this function returns true.
 
 * `typeahead-on-select($item, $model, $label, $event)`
   <small class="badge">$</small>