diff --git a/start-onos.sh b/start-onos.sh
index 7005985..495141d 100755
--- a/start-onos.sh
+++ b/start-onos.sh
@@ -34,6 +34,7 @@
 		-Dcom.sun.management.jmxremote.port=7189 \
 		-Dcom.sun.management.jmxremote.ssl=false \
 		-Dcom.sun.management.jmxremote.authenticate=false"
+JVM_OPTS="$JVM_OPTS -Dhazelcast.logging.type=slf4j"
 
 # Set ONOS core main class
 MAIN_CLASS="net.onrc.onos.ofcontroller.core.Main"