diff --git a/frontend/src/ts/popups/quote-search-popup.ts b/frontend/src/ts/popups/quote-search-popup.ts
index 3ca431db0..d53ccc378 100644
--- a/frontend/src/ts/popups/quote-search-popup.ts
+++ b/frontend/src/ts/popups/quote-search-popup.ts
@@ -28,7 +28,7 @@ export function setSelectedId(val: number): void {
   selectedId = val;
 }
 
-const searchServiceCache: Record<string, SearchService<any>> = {};
+const searchServiceCache: Record<string, SearchService<MonkeyTypes.Quote>> = {};
 
 function getSearchService<T>(
   language: string,
@@ -36,11 +36,12 @@ function getSearchService<T>(
   textExtractor: TextExtractor<T>
 ): SearchService<T> {
   if (language in searchServiceCache) {
-    return searchServiceCache[language];
+    return searchServiceCache[language] as unknown as SearchService<T>;
   }
 
   const newSearchService = buildSearchService<T>(data, textExtractor);
-  searchServiceCache[language] = newSearchService;
+  searchServiceCache[language] =
+    newSearchService as unknown as typeof searchServiceCache[typeof language];
 
   return newSearchService;
 }