diff --git a/tests/p_arpwatch/arpwatch_test.sh b/tests/p_arpwatch/arpwatch_test.sh
index b27b4a3..ebb2345 100755
--- a/tests/p_arpwatch/arpwatch_test.sh
+++ b/tests/p_arpwatch/arpwatch_test.sh
@@ -3,6 +3,9 @@
 
 t_Log "Running $0 - arpwatch on eth0"
 
+# Kill arpwatch instance from previous test
+killall arpwatch
+
 # getting IP-address of default gateway
 defgw=$(ip route list | grep default | cut -d' ' -f3)