diff --git a/bin/spark-daemons.sh b/bin/spark-daemons.sh
index 354eb905a1..64286cb2da 100755
--- a/bin/spark-daemons.sh
+++ b/bin/spark-daemons.sh
@@ -19,7 +19,7 @@
 
 # Run a Spark command on all slave hosts.
 
-usage="Usage: spark-daemons.sh [--config confdir] [--hosts hostlistfile] [start|stop] command instance-number args..."
+usage="Usage: spark-daemons.sh [--config <conf-dir>] [start|stop] command instance-number args..."
 
 # if no args specified, show usage
 if [ $# -le 1 ]; then