diff --git a/packages/backend/src/misc/cache.ts b/packages/backend/src/misc/cache.ts
index 742dad0857..d385a3e75e 100644
--- a/packages/backend/src/misc/cache.ts
+++ b/packages/backend/src/misc/cache.ts
@@ -55,7 +55,10 @@ export class RedisKVCache<T> {
 
 		const cached = await this.redisClient.get(`kvcache:${this.name}:${key}`);
 		if (cached == null) return undefined;
-		return this.fromRedisConverter(cached);
+		const parsed = this.fromRedisConverter(cached);
+		if (parsed == null) return undefined;
+		this.memoryCache.set(key, parsed);
+		return parsed;
 	}
 
 	@bindThis
@@ -150,7 +153,7 @@ export class RedisSingleCache<T> {
 		const cached = await this.redisClient.get(`singlecache:${this.name}`);
 		if (cached == null) return undefined;
 		const parsed = this.fromRedisConverter(cached);
-    if (parsed == null) return undefined;
+		if (parsed == null) return undefined;
 		this.memoryCache.set(parsed);
 		return parsed;
 	}