diff --git a/hoptimator-operator/src/main/java/com/linkedin/hoptimator/operator/subscription/SubscriptionEnvironment.java b/hoptimator-operator/src/main/java/com/linkedin/hoptimator/operator/subscription/SubscriptionEnvironment.java
index f47aeaf..fae4f6c 100644
--- a/hoptimator-operator/src/main/java/com/linkedin/hoptimator/operator/subscription/SubscriptionEnvironment.java
+++ b/hoptimator-operator/src/main/java/com/linkedin/hoptimator/operator/subscription/SubscriptionEnvironment.java
@@ -37,7 +37,9 @@ public class SubscriptionEnvironment extends Resource.SimpleEnvironment {
 
   public SubscriptionEnvironment(String namespace, String name, Pipeline pipeline,
       Map<String, String> hints) {
-    exportAll(hints);
+    if (hints != null) {
+      exportAll(hints);
+    }
     export("pipeline.namespace", namespace);
     export("pipeline.name", name);
     export("pipeline.avroSchema", AvroConverter.avro("com.linkedin.hoptimator", "OutputRecord",