diff --git a/src/wp-admin/includes/noop.php b/src/wp-admin/includes/noop.php
index b29f6044d8..39dc9702c1 100644
--- a/src/wp-admin/includes/noop.php
+++ b/src/wp-admin/includes/noop.php
@@ -22,6 +22,13 @@ function _x() {}
  */
 function add_filter() {}
 
+/**
+ * @ignore
+ */
+function has_filter() {
+	return false;
+}
+
 /**
  * @ignore
  */