diff --git a/bindings/uniffi/uniffi-android.toml b/bindings/uniffi/uniffi-android.toml
index dad95a5b..90e9110f 100644
--- a/bindings/uniffi/uniffi-android.toml
+++ b/bindings/uniffi/uniffi-android.toml
@@ -5,5 +5,5 @@ generate_immutable_records = true
 android = true
 
 [bindings.kotlin.custom_types.JsonBuffer]
-into_custom = "JsonBuffer({})"
+into_custom = "io.gorules.zen_engine.kotlin.JsonBuffer({})"
 from_custom = "{}.value"