diff --git a/test/kill_node.sh b/test/kill_node.sh
index 569a40947..1f6f200e1 100755
--- a/test/kill_node.sh
+++ b/test/kill_node.sh
@@ -1,3 +1,11 @@
 #!/bin/bash
-pkill -9 '^(harmony|soldier|commander|profiler|bootnode)$' | sed 's/^/Killed process: /'
-rm -rf db-127.0.0.1-*
+
+# list of process name to be killed
+targetProcess=( "harmony" "bootnode" "soldier" "commander" "profiler" )
+
+for pname in "${targetProcess[@]}"
+do
+  sudo pkill -9 -e "^(${pname})$"
+done
+
+rm -rf db-127.0.0.1-*
\ No newline at end of file