diff --git a/src/Searching.ts b/src/Searching.ts
index 85483eb23c..b14078fc83 100644
--- a/src/Searching.ts
+++ b/src/Searching.ts
@@ -605,7 +605,7 @@ function eventIndexSearch(
     let searchPromise: Promise<ISearchResults>;
 
     if (roomId !== undefined) {
-        if (client.isRoomEncrypted(roomId)) {
+        if (client.getCrypto()?.isEncryptionEnabledInRoom(roomId)) {
             // The search is for a single encrypted room, use our local
             // search method.
             searchPromise = localSearchProcess(client, term, roomId);