diff --git a/junction/src/main/java/org/killbill/billing/junction/plumbing/billing/DefaultInternalBillingApi.java b/junction/src/main/java/org/killbill/billing/junction/plumbing/billing/DefaultInternalBillingApi.java
index ec51d4b..f9add3b 100644
--- a/junction/src/main/java/org/killbill/billing/junction/plumbing/billing/DefaultInternalBillingApi.java
+++ b/junction/src/main/java/org/killbill/billing/junction/plumbing/billing/DefaultInternalBillingApi.java
@@ -291,7 +291,7 @@ public class DefaultInternalBillingApi implements BillingInternalApi {
if (objectId == null) {
return objectType == input.getObjectType();
} else {
- return objectType == input.getObjectType() && objectId == input.getObjectId();
+ return objectType == input.getObjectType() && objectId.equals(input.getObjectId());
}
}