diff --git a/test/unit/org/apache/cassandra/io/util/NIODataInputStreamTest.java b/test/unit/org/apache/cassandra/io/util/NIODataInputStreamTest.java
index 7feeb43c96..829cfcff2a 100644
--- a/test/unit/org/apache/cassandra/io/util/NIODataInputStreamTest.java
+++ b/test/unit/org/apache/cassandra/io/util/NIODataInputStreamTest.java
@@ -97,7 +97,7 @@ public class NIODataInputStreamTest
         @Override
         public boolean isOpen()
         {
-            return isOpen();
+            return isOpen;
         }
 
         @Override