diff --git a/CHANGELOG.md b/CHANGELOG.md
index f2b4835de2..43f9cdcb4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- `addPeerToAddressBook` is now async.
+
 ## [0.26.0] - 2022-09-08
 
 ### Added
diff --git a/src/lib/waku.ts b/src/lib/waku.ts
index aa65878f16..ecbd90a4fd 100644
--- a/src/lib/waku.ts
+++ b/src/lib/waku.ts
@@ -143,10 +143,10 @@ export class WakuNode implements Waku {
   /**
    * Add peer to address book, it will be auto-dialed in the background.
    */
-  addPeerToAddressBook(
+  async addPeerToAddressBook(
     peerId: PeerId | string,
     multiaddrs: Multiaddr[] | string[]
-  ): void {
+  ): Promise<void> {
     let peer;
     if (typeof peerId === "string") {
       peer = peerIdFromString(peerId);
@@ -160,7 +160,7 @@ export class WakuNode implements Waku {
         return addr;
       }
     });
-    this.libp2p.peerStore.addressBook.set(peer, addresses);
+    await this.libp2p.peerStore.addressBook.set(peer, addresses);
   }
 
   async start(): Promise<void> {