diff --git a/badger/delete.go b/badger/delete.go
index e2d99b6..85909d2 100644
--- a/badger/delete.go
+++ b/badger/delete.go
@@ -19,6 +19,7 @@ func (b *BadgerBackend) DeleteEvent(ctx context.Context, evt *nostr.Event) error
 		// query event by id to get its idx
 		id, _ := hex.DecodeString(evt.ID)
 		prefix := make([]byte, 1+32)
+		prefix[0] = indexIdPrefix
 		copy(prefix[1:], id)
 		opts := badger.DefaultIteratorOptions
 		opts.PrefetchValues = false
diff --git a/badger/save.go b/badger/save.go
index d937b6f..4760126 100644
--- a/badger/save.go
+++ b/badger/save.go
@@ -15,6 +15,7 @@ func (b *BadgerBackend) SaveEvent(ctx context.Context, evt *nostr.Event) error {
 		// query event by id to ensure we don't save duplicates
 		id, _ := hex.DecodeString(evt.ID)
 		prefix := make([]byte, 1+32)
+		prefix[0] = indexIdPrefix
 		copy(prefix[1:], id)
 		opts := badger.DefaultIteratorOptions
 		opts.PrefetchValues = false