diff --git a/tibi_hardlinks/cache.py b/tibi_hardlinks/cache.py
index a14b2a9..e6943cb 100644
--- a/tibi_hardlinks/cache.py
+++ b/tibi_hardlinks/cache.py
@@ -5,7 +5,7 @@ from tibi_hardlinks.config import CACHE_DIR
 
 import shelve
 
-tibi_cache = shelve.open(str((Path(CACHE_DIR) / "cache").absolute()))
+tibi_cache = shelve.open(str((Path(CACHE_DIR) / "cache").absolute()), writeback=True)
 atexit.register(tibi_cache.close)