diff --git a/lib/util/cache/repository/impl/base.ts b/lib/util/cache/repository/impl/base.ts
index 2fbb6ef8964a7f..4f3383e137ac7b 100644
--- a/lib/util/cache/repository/impl/base.ts
+++ b/lib/util/cache/repository/impl/base.ts
@@ -71,8 +71,9 @@ export abstract class RepoCacheBase implements RepoCache {
   }
 
   async save(): Promise<void> {
-    cleanupHttpCache(this.data);
-
+    if (this.data) {
+      cleanupHttpCache(this.data);
+    }
     const jsonStr = safeStringify(this.data);
     const hashedJsonStr = hash(jsonStr);
     if (hashedJsonStr === this.oldHash) {