diff --git a/src/db/events.ts b/src/db/events.ts
index bac26580..71bc7657 100644
--- a/src/db/events.ts
+++ b/src/db/events.ts
@@ -1,7 +1,9 @@
 import { db, type TagRow } from '@/db.ts';
-import { type Filter, type Insertable } from '@/deps.ts';
+import { type Insertable } from '@/deps.ts';
 import { type SignedEvent } from '@/event.ts';
 
+import type { DittoFilter } from '@/types.ts';
+
 type TagCondition = ({ event, count }: { event: SignedEvent; count: number }) => boolean;
 
 /** Conditions for when to index certain tags. */
@@ -42,19 +44,12 @@ function insertEvent(event: SignedEvent): Promise<void> {
       return results;
     }, []);
 
-    await Promise.all(tags.map((tag) => {
-      return trx.insertInto('tags')
-        .values(tag)
-        .execute();
-    }));
+    await trx.insertInto('tags')
+      .values(tags)
+      .execute();
   });
 }
 
-/** Custom filter interface that extends Nostr filters with extra options for Ditto. */
-interface DittoFilter<K extends number = number> extends Filter<K> {
-  local?: boolean;
-}
-
 /** Build the query for a filter. */
 function getFilterQuery(filter: DittoFilter) {
   let query = db
diff --git a/src/types.ts b/src/types.ts
new file mode 100644
index 00000000..6c7feba0
--- /dev/null
+++ b/src/types.ts
@@ -0,0 +1,8 @@
+import { type Filter } from '@/deps.ts';
+
+/** Custom filter interface that extends Nostr filters with extra options for Ditto. */
+interface DittoFilter<K extends number = number> extends Filter<K> {
+  local?: boolean;
+}
+
+export { type DittoFilter };