diff --git a/server/shared/types/index.ts b/server/shared/types/index.ts
index a3a8eda..3150ef5 100644
--- a/server/shared/types/index.ts
+++ b/server/shared/types/index.ts
@@ -1,8 +1,6 @@
 /**
  * This module and all submodules provide types that are being shared between client and server.
  */
-import { isString } from "./primitives";
-
 export * from "./arrays";
 export * from "./config";
 export * from "./email";
@@ -20,6 +18,3 @@ export * from "./statistics";
 export * from "./sortfields";
 export * from "./task";
 export * from "./time";
-
-export type SearchTerm = string & { readonly __tag: unique symbol };
-export const isSearchTerm = isString;