diff --git a/core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala b/core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
index 4b131d87cea3239e646fe5feed7add3d6baef0dc..300fe693f1c5556bf5fbb509f34f133d75639bdb 100644
--- a/core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
+++ b/core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/CoarseMesosSchedulerBackend.scala
@@ -128,7 +128,7 @@ private[spark] class CoarseMesosSchedulerBackend(
     if (uri == null) {
       val runScript = new File(sparkHome, "spark-class").getCanonicalPath
       command.setValue(
-        "\"%s\" CoarseGrainedExecutorBackend %s %s %s %d".format(
+        "\"%s\" org.apache.spark.executor.CoarseGrainedExecutorBackend %s %s %s %d".format(
           runScript, driverUrl, offer.getSlaveId.getValue, offer.getHostname, numCores))
     } else {
       // Grab everything to the first '.'. We'll use that and '*' to