diff --git a/library/Icinga/Data/Filterable.php b/library/Icinga/Data/Filterable.php
new file mode 100644
index 000000000..5f8cd5709
--- /dev/null
+++ b/library/Icinga/Data/Filterable.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Icinga\Data;
+
+/**
+ * Interface for filtering a result set
+ */
+interface Filterable {}