diff --git a/core/src/unified-search.js b/core/src/unified-search.ts
similarity index 87%
rename from core/src/unified-search.js
rename to core/src/unified-search.ts
index 4be923085d3..24571f149a4 100644
--- a/core/src/unified-search.js
+++ b/core/src/unified-search.ts
@@ -49,10 +49,19 @@ Vue.mixin({
 	},
 })
 
+// Define type structure for unified searc action
+interface UnifiedSearchAction {
+    id: string;
+    appId: string;
+    label: string;
+    icon: string;
+    callback: () => void;
+}
+
 // Register the add/register filter action API globally
 window.OCA = window.OCA || {}
 window.OCA.UnifiedSearch = {
-	registerFilterAction: ({ id, appId, label, callback, icon }) => {
+	registerFilterAction: ({ id, appId, label, callback, icon }: UnifiedSearchAction) => {
 		const searchStore = useSearchStore()
 		searchStore.registerExternalFilter({ id, appId, label, callback, icon })
 	},
diff --git a/webpack.modules.js b/webpack.modules.js
index c6662e7ee81..2ef663376c5 100644
--- a/webpack.modules.js
+++ b/webpack.modules.js
@@ -37,7 +37,7 @@ module.exports = {
 		profile: path.join(__dirname, 'core/src', 'profile.ts'),
 		recommendedapps: path.join(__dirname, 'core/src', 'recommendedapps.js'),
 		systemtags: path.resolve(__dirname, 'core/src', 'systemtags/merged-systemtags.js'),
-		'unified-search': path.join(__dirname, 'core/src', 'unified-search.js'),
+		'unified-search': path.join(__dirname, 'core/src', 'unified-search.ts'),
 		'legacy-unified-search': path.join(__dirname, 'core/src', 'legacy-unified-search.js'),
 		'unsupported-browser': path.join(__dirname, 'core/src', 'unsupported-browser.js'),
 		'unsupported-browser-redirect': path.join(__dirname, 'core/src', 'unsupported-browser-redirect.js'),