diff --git a/core/api/src/main/java/org/onlab/onos/store/service/WriteResult.java b/core/api/src/main/java/org/onlab/onos/store/service/WriteResult.java
index 3cc11b0..3f61061 100644
--- a/core/api/src/main/java/org/onlab/onos/store/service/WriteResult.java
+++ b/core/api/src/main/java/org/onlab/onos/store/service/WriteResult.java
@@ -7,27 +7,27 @@
  * Database write result.
  */
 public class WriteResult {
-	
+
     private final WriteStatus status;
     private final VersionedValue previousValue;
-    
+
     public WriteResult(WriteStatus status, VersionedValue previousValue) {
-    	this.status = status;
+        this.status = status;
         this.previousValue = previousValue;
     }
 
     public VersionedValue previousValue() {
         return previousValue;
     }
-    
+
     public WriteStatus status() {
-    	return status;
+        return status;
     }
 
     @Override
     public String toString() {
         return MoreObjects.toStringHelper(getClass())
-        		.add("status", status)
+                .add("status", status)
                 .add("previousValue", previousValue)
                 .toString();
     }