diff --git a/src/Utils/auth-utils.ts b/src/Utils/auth-utils.ts
index 85c002f..9230147 100644
--- a/src/Utils/auth-utils.ts
+++ b/src/Utils/auth-utils.ts
@@ -26,7 +26,7 @@ export const addTransactionCapability = (state: SignalKeyStore, logger: Logger):
 		}
 
 		const dict = transactionCache[type]
-		const idsRequiringFetch = ids.filter(item => !dict?.[item])
+		const idsRequiringFetch = dict ? ids.filter(item => !(item in dict)) : ids
 		// only fetch if there are any items to fetch
 		if(idsRequiringFetch.length) {
 			const result = await state.get(type, idsRequiringFetch)