diff --git a/tools/test/bin/stc b/tools/test/bin/stc
index c4c0d43..120d7fd 100755
--- a/tools/test/bin/stc
+++ b/tools/test/bin/stc
@@ -7,6 +7,8 @@
 JAR=~/.m2/repository/org/onosproject/onlab-stc/$VER/onlab-stc-$VER.jar
 SCENARIOS=$ONOS_ROOT/tools/test/scenarios
 
+DEBUG_OPTS="-agentlib:jdwp=transport=dt_socket,address=5005,server=y,suspend=y"
+
 scenario=${1:-smoke}
 
 [ ! -f $scenario ] && scenario=$SCENARIOS/$scenario