diff --git a/src/fdb5/toc/TocStore.h b/src/fdb5/toc/TocStore.h
index 84b837904..ab3725fef 100644
--- a/src/fdb5/toc/TocStore.h
+++ b/src/fdb5/toc/TocStore.h
@@ -39,7 +39,7 @@ class TocStore : public Store, public TocCommon {
 
     TocStore(const Key& key, const Config& config);
 
-    ~TocStore() override {}
+    ~TocStore() override { close(); }
 
     eckit::URI uri() const override;
     bool uriBelongs(const eckit::URI&) const override;