diff --git a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/mesos/RegisterDriver.java b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/mesos/RegisterDriver.java
index 1c28fc1dff246..94a61d6caadc4 100644
--- a/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/mesos/RegisterDriver.java
+++ b/network/shuffle/src/main/java/org/apache/spark/network/shuffle/protocol/mesos/RegisterDriver.java
@@ -23,6 +23,9 @@
 import org.apache.spark.network.protocol.Encoders;
 import org.apache.spark.network.shuffle.protocol.BlockTransferMessage;
 
+// Needed by ScalaDoc. See SPARK-7726
+import static org.apache.spark.network.shuffle.protocol.BlockTransferMessage.Type;
+
 /**
  * A message sent from the driver to register with the MesosExternalShuffleService.
  */