diff --git a/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip03Timestamp/OtsResolverBuilder.kt b/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip03Timestamp/OtsResolverBuilder.kt
index 51c7f616d..502e1e78c 100644
--- a/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip03Timestamp/OtsResolverBuilder.kt
+++ b/quartz/src/androidMain/kotlin/com/vitorpamplona/quartz/nip03Timestamp/OtsResolverBuilder.kt
@@ -23,3 +23,7 @@ package com.vitorpamplona.quartz.nip03Timestamp
 interface OtsResolverBuilder {
     fun build(): OtsResolver
 }
+
+class DefaultOtsResolverBuilder : OtsResolverBuilder {
+    override fun build(): OtsResolver = OtsResolver()
+}