diff --git a/libpkg/data/storageprivate.h b/libpkg/data/storageprivate.h
index f731c0a..a268ee7 100644
--- a/libpkg/data/storageprivate.h
+++ b/libpkg/data/storageprivate.h
@@ -99,7 +99,6 @@ public:
 
     template <typename IndexType> StorageEntry *find(const IndexType &ref);
     StorageEntry &insert(StorageEntry &&entry);
-    void undo();
     std::size_t erase(const Ref &ref);
     std::size_t clear(const Storage &storage);
     iterator begin();
@@ -117,11 +116,6 @@ inline StorageCacheEntries<StorageEntryType>::StorageCacheEntries(std::size_t li
 {
 }
 
-template <typename StorageEntryType> inline void StorageCacheEntries<StorageEntryType>::undo()
-{
-    m_entries.pop_front();
-}
-
 template <typename StorageEntryType> inline std::size_t StorageCacheEntries<StorageEntryType>::erase(const Ref &ref)
 {
     return m_entries.template get<typename StorageEntryType::Ref>().erase(ref);