diff --git a/assets/javascripts/discourse/templates/modal/assign-user.hbs b/assets/javascripts/discourse/templates/modal/assign-user.hbs
index 8884cf6..9945db9 100644
--- a/assets/javascripts/discourse/templates/modal/assign-user.hbs
+++ b/assets/javascripts/discourse/templates/modal/assign-user.hbs
@@ -7,7 +7,7 @@
       onChange=(action "assignUsername")
       autofocus="autofocus"
       options=(hash
-        placementStrategy="absolute"
+        mobilePlacementStrategy="absolute"
         filterPlaceholder=placeholderKey
         includeGroups=true
         customSearchOptions=(hash assignableGroups=true)