diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
index 0f3b43c..540a98f 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/EncodableDiscreteResources.java
@@ -84,9 +84,7 @@
 
     @Override
     public DiscreteResources difference(DiscreteResources other) {
-        Set<DiscreteResource> diff = Sets.difference(values(), other.values());
-
-        return of(parent, diff);
+        return of(parent, Sets.difference(values(), other.values()));
     }
 
     @Override
diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/GenericDiscreteResources.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/GenericDiscreteResources.java
index 94e3c62..b8c8b2b 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/GenericDiscreteResources.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/GenericDiscreteResources.java
@@ -58,7 +58,7 @@
 
     @Override
     public DiscreteResources difference(DiscreteResources other) {
-        return new GenericDiscreteResources(Sets.difference(this.values, other.values()));
+        return of(Sets.difference(this.values(), other.values()));
     }
 
     @Override
diff --git a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/UnifiedDiscreteResources.java b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/UnifiedDiscreteResources.java
index ceb115d..31c6488 100644
--- a/core/store/dist/src/main/java/org/onosproject/store/resource/impl/UnifiedDiscreteResources.java
+++ b/core/store/dist/src/main/java/org/onosproject/store/resource/impl/UnifiedDiscreteResources.java
@@ -65,7 +65,7 @@
 
     @Override
     public DiscreteResources difference(DiscreteResources other) {
-        return of(Sets.difference(values(), other.values()));
+        return of(Sets.difference(this.values(), other.values()));
     }
 
     @Override