diff --git a/app/assets/javascripts/foreman_wds/host_edit_extensions.js b/app/assets/javascripts/foreman_wds/host_edit_extensions.js
index 7a6b791fc1a4fcc8924c616b63d05e7ea4c40f47..d65639a1c4af131eff9f2320191704c92f08a498 100644
--- a/app/assets/javascripts/foreman_wds/host_edit_extensions.js
+++ b/app/assets/javascripts/foreman_wds/host_edit_extensions.js
@@ -38,7 +38,7 @@ function wds_provision_method_selected() {
   $('#wds_provisioning').show();
 
   if ($('#wds_image_select select').val() === '') {
-    $('#wds_image_select select').attr('disabled', true);
+    $('#wds_image_select select').prop('disabled', true);
   }
 }