diff --git a/.changeset/techdocs-sakta-vi-gar.md b/.changeset/techdocs-sakta-vi-gar.md
new file mode 100644
index 0000000000..183d90300b
--- /dev/null
+++ b/.changeset/techdocs-sakta-vi-gar.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-techdocs-backend': patch
+---
+
+Fixed a bug preventing cache from being enabled in TechDocs "recommended" deployment mode.
diff --git a/plugins/techdocs-backend/src/service/router.ts b/plugins/techdocs-backend/src/service/router.ts
index 8f48342683..b54714101f 100644
--- a/plugins/techdocs-backend/src/service/router.ts
+++ b/plugins/techdocs-backend/src/service/router.ts
@@ -60,6 +60,7 @@ type RecommendedDeploymentOptions = {
   logger: Logger;
   discovery: PluginEndpointDiscovery;
   config: Config;
+  cache?: PluginCacheManager;
 };
 
 /**
@@ -89,7 +90,7 @@ export async function createRouter(
   // Set up a cache client if configured.
   let cache: TechDocsCache | undefined;
   const defaultTtl = config.getOptionalNumber('techdocs.cache.ttl');
-  if (isOutOfTheBoxOption(options) && options.cache && defaultTtl) {
+  if (options.cache && defaultTtl) {
     const cacheClient = options.cache.getClient({ defaultTtl });
     cache = TechDocsCache.fromConfig(config, { cache: cacheClient, logger });
   }