diff --git a/packages/calcite-components/src/components/filter/resources.ts b/packages/calcite-components/src/components/filter/resources.ts
index 0adab7cd3b8..5b1a51b205e 100644
--- a/packages/calcite-components/src/components/filter/resources.ts
+++ b/packages/calcite-components/src/components/filter/resources.ts
@@ -1,6 +1,7 @@
 export const CSS = {
   container: "container",
   searchIcon: "search-icon",
+  input: "input",
 };
 
 export const ICONS = {